We can use the formula for the area of a rectangle to solve for the width:
Area = length x width
Substituting the given values, we get:
53 = 87 x width
To solve for the width, we can divide both sides by 87:
53/87 = width
Simplifying, we get:
width ≈ 0.609
Therefore, the width of the park is approximately 0.609 miles.