Question

solve for d in the proportion.
\frac{d}{40}=\frac{80}{32}
d = square

Explanation:

Step1: Cross - multiply

$d\times32 = 40\times80$

Step2: Calculate the right - hand side

$40\times80 = 3200$, so $32d=3200$

Step3: Solve for d

$d=\frac{3200}{32}=100$

Answer:

100