Answer
$d = 81$
Work Step by Step
$36 = \frac{4}{9}d$
We need to isolate the variable $d$ by multiplying through by the reciprocal of the coefficient of $d$ as shown below:
$36 \times \frac{9}{4} = \frac{4}{9} \times \frac{9}{4}$
Simplifying we have:
$81 = d$
Rearranging the equation we have:
$d = 81$
Therefore, the equation has a possible solution at the point $d = 81$
