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Finding the Fourth Proportional to 83,687.59, 125,589.71 and 36,914.95

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Solution

The fourth proportional to 83,687.59, 125,589.71 and 36,914.95 is: 55,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,687.59 : 125,589.71 = 36,914.95 : x
  2. Step 2: Convert to fraction form
    83,687.59/125,589.71 = 36,914.95/x
  3. Step 3: Cross multiply
    83,687.59x = 125,589.71 × 36,914.95
  4. Step 4: Simplify right side
    83,687.59x = 4,636,138,114.44
  5. Step 5: Solve for x
    x = 4,636,138,114.44/83,687.59
  6. Step 6: Final answer
    x = 55,398.15

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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.