Home / 87,737.43-121,092.54-49,507.81

Finding the Fourth Proportional to 87,737.43, 121,092.54 and 49,507.81

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Solution

The fourth proportional to 87,737.43, 121,092.54 and 49,507.81 is: 68,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,737.43 : 121,092.54 = 49,507.81 : x
  2. Step 2: Convert to fraction form
    87,737.43/121,092.54 = 49,507.81/x
  3. Step 3: Cross multiply
    87,737.43x = 121,092.54 × 49,507.81
  4. Step 4: Simplify right side
    87,737.43x = 5,995,026,845.07
  5. Step 5: Solve for x
    x = 5,995,026,845.07/87,737.43
  6. Step 6: Final answer
    x = 68,329.18

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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.