Home / 87,747.92-121,092.14-49,515.56

Finding the Fourth Proportional to 87,747.92, 121,092.14 and 49,515.56

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Solution

The fourth proportional to 87,747.92, 121,092.14 and 49,515.56 is: 68,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,747.92 : 121,092.14 = 49,515.56 : x
  2. Step 2: Convert to fraction form
    87,747.92/121,092.14 = 49,515.56/x
  3. Step 3: Cross multiply
    87,747.92x = 121,092.14 × 49,515.56
  4. Step 4: Simplify right side
    87,747.92x = 5,995,944,270.66
  5. Step 5: Solve for x
    x = 5,995,944,270.66/87,747.92
  6. Step 6: Final answer
    x = 68,331.47

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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.