Home / 87,948.08-131,986.92-54,717.04

Finding the Fourth Proportional to 87,948.08, 131,986.92 and 54,717.04

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Solution

The fourth proportional to 87,948.08, 131,986.92 and 54,717.04 is: 82,115.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948.08 : 131,986.92 = 54,717.04 : x
  2. Step 2: Convert to fraction form
    87,948.08/131,986.92 = 54,717.04/x
  3. Step 3: Cross multiply
    87,948.08x = 131,986.92 × 54,717.04
  4. Step 4: Simplify right side
    87,948.08x = 7,221,933,581.12
  5. Step 5: Solve for x
    x = 7,221,933,581.12/87,948.08
  6. Step 6: Final answer
    x = 82,115.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.