Home / 89,404.11-123,379.97-49,118.90

Finding the Fourth Proportional to 89,404.11, 123,379.97 and 49,118.90

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Solution

The fourth proportional to 89,404.11, 123,379.97 and 49,118.90 is: 67,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,404.11 : 123,379.97 = 49,118.90 : x
  2. Step 2: Convert to fraction form
    89,404.11/123,379.97 = 49,118.90/x
  3. Step 3: Cross multiply
    89,404.11x = 123,379.97 × 49,118.90
  4. Step 4: Simplify right side
    89,404.11x = 6,060,287,545.94
  5. Step 5: Solve for x
    x = 6,060,287,545.94/89,404.11
  6. Step 6: Final answer
    x = 67,785.33

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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.