Home / 89,781.06-123,898.68-49,496.28

Finding the Fourth Proportional to 89,781.06, 123,898.68 and 49,496.28

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Solution

The fourth proportional to 89,781.06, 123,898.68 and 49,496.28 is: 68,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,781.06 : 123,898.68 = 49,496.28 : x
  2. Step 2: Convert to fraction form
    89,781.06/123,898.68 = 49,496.28/x
  3. Step 3: Cross multiply
    89,781.06x = 123,898.68 × 49,496.28
  4. Step 4: Simplify right side
    89,781.06x = 6,132,523,756.91
  5. Step 5: Solve for x
    x = 6,132,523,756.91/89,781.06
  6. Step 6: Final answer
    x = 68,305.32

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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.