Home / 87,854.25-131,780.19-21,294.95

Finding the Fourth Proportional to 87,854.25, 131,780.19 and 21,294.95

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Solution

The fourth proportional to 87,854.25, 131,780.19 and 21,294.95 is: 31,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854.25 : 131,780.19 = 21,294.95 : x
  2. Step 2: Convert to fraction form
    87,854.25/131,780.19 = 21,294.95/x
  3. Step 3: Cross multiply
    87,854.25x = 131,780.19 × 21,294.95
  4. Step 4: Simplify right side
    87,854.25x = 2,806,252,557.04
  5. Step 5: Solve for x
    x = 2,806,252,557.04/87,854.25
  6. Step 6: Final answer
    x = 31,942.14

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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.