To solve this problem, we first need to calculate the present value of the future payments and then determine the equal payments at the 3-year and 5-year marks that have the same total present value when discounted back to the present at the given interest rate of 3.36% compounded quarterly.
### Step 1: Calculate the quarterly interest rate
Given that the annual interest rate is 3.36%, the quarterly interest rate is:
r = \frac{3.36\%}{4} = 0.84\%
Converting to decimal form, we get:
r = 0.0084
### Step 2: Calculate the number of quarters for each payment
- 7 years = 28 quarters
- 9 years = 36 quarters
- 3 years = 12 quarters
- 5 years = 20 quarters
### Step 3: Calculate the present value (PV) of each future payment
The present value formula is given by:
PV = \frac{P}{(1 + r)^n}
where P is the payment, r is the quarterly interest rate, and n is the number of quarters.
Calculating the present values of the future payments:
- Present value of 42,500 due in 7 years is 33,625.56.
- Present value of 60,000 due in 9 years is 44,398.58.
### Step 4: Calculate the total present value
Adding the present values of the two future payments gives a total present value of $78,024.14.
### Step 5: Calculate the present value of the payments in 3 years and 5 years
We need to find equal payments that, when discounted back to the present at the interest rate, will match the total present value from step 4.
### Step 6: Solve for the equal payments ( P )
Setting up the equation:
P \times \left( \frac{1}{(1 + 0.0084)^{12}} + \frac{1}{(1 + 0.0084)^{20}} \right) = 78024.14
By solving the equation, we find that each equal payment should be approximately $44,573.97.
Therefore, the equal payments required at the 3-year and 5-year marks to match the total present value of the original future payments are approximately \ 44,573.97$ each.