Home / 87,755.25-131,652.70-27,787.38

Finding the Fourth Proportional to 87,755.25, 131,652.70 and 27,787.38

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Solution

The fourth proportional to 87,755.25, 131,652.70 and 27,787.38 is: 41,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755.25 : 131,652.70 = 27,787.38 : x
  2. Step 2: Convert to fraction form
    87,755.25/131,652.70 = 27,787.38/x
  3. Step 3: Cross multiply
    87,755.25x = 131,652.70 × 27,787.38
  4. Step 4: Simplify right side
    87,755.25x = 3,658,283,602.93
  5. Step 5: Solve for x
    x = 3,658,283,602.93/87,755.25
  6. Step 6: Final answer
    x = 41,687.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.