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Finding the Fourth Proportional to 89,791.04, 123,917.04 and 49,513.76

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Solution

The fourth proportional to 89,791.04, 123,917.04 and 49,513.76 is: 68,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,791.04 : 123,917.04 = 49,513.76 : x
  2. Step 2: Convert to fraction form
    89,791.04/123,917.04 = 49,513.76/x
  3. Step 3: Cross multiply
    89,791.04x = 123,917.04 × 49,513.76
  4. Step 4: Simplify right side
    89,791.04x = 6,135,598,578.47
  5. Step 5: Solve for x
    x = 6,135,598,578.47/89,791.04
  6. Step 6: Final answer
    x = 68,331.97

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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.