20 points asap algebra ii

in the coordinate plane, let $f = (4,0).$ let $p$ be a point, and let $q$ be the projection of the point $p$ onto the line $x = \frac{25}{4}.$ the point $p$ traces a curve in the plane, so that
\[\frac{pf}{pq} = \frac{4}{5}\]for all points $p$ on the curve. find the area of the region formed by the curve.