Home / 73,132.38-109,702.82-20,545.97

Finding the Fourth Proportional to 73,132.38, 109,702.82 and 20,545.97

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Solution

The fourth proportional to 73,132.38, 109,702.82 and 20,545.97 is: 30,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,132.38 : 109,702.82 = 20,545.97 : x
  2. Step 2: Convert to fraction form
    73,132.38/109,702.82 = 20,545.97/x
  3. Step 3: Cross multiply
    73,132.38x = 109,702.82 × 20,545.97
  4. Step 4: Simplify right side
    73,132.38x = 2,253,950,351.49
  5. Step 5: Solve for x
    x = 2,253,950,351.49/73,132.38
  6. Step 6: Final answer
    x = 30,820.14

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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.