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Finding the Fourth Proportional to 89,800.68, 123,930.55 and 49,514.38

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Solution

The fourth proportional to 89,800.68, 123,930.55 and 49,514.38 is: 68,332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,800.68 : 123,930.55 = 49,514.38 : x
  2. Step 2: Convert to fraction form
    89,800.68/123,930.55 = 49,514.38/x
  3. Step 3: Cross multiply
    89,800.68x = 123,930.55 × 49,514.38
  4. Step 4: Simplify right side
    89,800.68x = 6,136,344,563.12
  5. Step 5: Solve for x
    x = 6,136,344,563.12/89,800.68
  6. Step 6: Final answer
    x = 68,332.94

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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.