Home / 66,445.52-91,695.24-39,589.16

Finding the Fourth Proportional to 66,445.52, 91,695.24 and 39,589.16

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Solution

The fourth proportional to 66,445.52, 91,695.24 and 39,589.16 is: 54,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445.52 : 91,695.24 = 39,589.16 : x
  2. Step 2: Convert to fraction form
    66,445.52/91,695.24 = 39,589.16/x
  3. Step 3: Cross multiply
    66,445.52x = 91,695.24 × 39,589.16
  4. Step 4: Simplify right side
    66,445.52x = 3,630,137,069.12
  5. Step 5: Solve for x
    x = 3,630,137,069.12/66,445.52
  6. Step 6: Final answer
    x = 54,633.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.