Home / 71,414.92-98,542.38-39,585.64

Finding the Fourth Proportional to 71,414.92, 98,542.38 and 39,585.64

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Solution

The fourth proportional to 71,414.92, 98,542.38 and 39,585.64 is: 54,622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,414.92 : 98,542.38 = 39,585.64 : x
  2. Step 2: Convert to fraction form
    71,414.92/98,542.38 = 39,585.64/x
  3. Step 3: Cross multiply
    71,414.92x = 98,542.38 × 39,585.64
  4. Step 4: Simplify right side
    71,414.92x = 3,900,863,179.42
  5. Step 5: Solve for x
    x = 3,900,863,179.42/71,414.92
  6. Step 6: Final answer
    x = 54,622.52

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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.