Home / 87,787.92-121,146.93-47,502.39

Finding the Fourth Proportional to 87,787.92, 121,146.93 and 47,502.39

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Solution

The fourth proportional to 87,787.92, 121,146.93 and 47,502.39 is: 65,553.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,787.92 : 121,146.93 = 47,502.39 : x
  2. Step 2: Convert to fraction form
    87,787.92/121,146.93 = 47,502.39/x
  3. Step 3: Cross multiply
    87,787.92x = 121,146.93 × 47,502.39
  4. Step 4: Simplify right side
    87,787.92x = 5,754,768,716.16
  5. Step 5: Solve for x
    x = 5,754,768,716.16/87,787.92
  6. Step 6: Final answer
    x = 65,553.08

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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.