Home / 87,787.98-121,147.02-47,502.45

Finding the Fourth Proportional to 87,787.98, 121,147.02 and 47,502.45

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Solution

The fourth proportional to 87,787.98, 121,147.02 and 47,502.45 is: 65,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,787.98 : 121,147.02 = 47,502.45 : x
  2. Step 2: Convert to fraction form
    87,787.98/121,147.02 = 47,502.45/x
  3. Step 3: Cross multiply
    87,787.98x = 121,147.02 × 47,502.45
  4. Step 4: Simplify right side
    87,787.98x = 5,754,780,260.20
  5. Step 5: Solve for x
    x = 5,754,780,260.20/87,787.98
  6. Step 6: Final answer
    x = 65,553.17

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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.