Home / 87,787.38-121,145.76-47,500.26

Finding the Fourth Proportional to 87,787.38, 121,145.76 and 47,500.26

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Solution

The fourth proportional to 87,787.38, 121,145.76 and 47,500.26 is: 65,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,787.38 : 121,145.76 = 47,500.26 : x
  2. Step 2: Convert to fraction form
    87,787.38/121,145.76 = 47,500.26/x
  3. Step 3: Cross multiply
    87,787.38x = 121,145.76 × 47,500.26
  4. Step 4: Simplify right side
    87,787.38x = 5,754,455,097.90
  5. Step 5: Solve for x
    x = 5,754,455,097.90/87,787.38
  6. Step 6: Final answer
    x = 65,549.91

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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.