Home / 87,866.10-131,799.15-52,787.70

Finding the Fourth Proportional to 87,866.10, 131,799.15 and 52,787.70

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Solution

The fourth proportional to 87,866.10, 131,799.15 and 52,787.70 is: 79,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,866.10 : 131,799.15 = 52,787.70 : x
  2. Step 2: Convert to fraction form
    87,866.10/131,799.15 = 52,787.70/x
  3. Step 3: Cross multiply
    87,866.10x = 131,799.15 × 52,787.70
  4. Step 4: Simplify right side
    87,866.10x = 6,957,373,990.46
  5. Step 5: Solve for x
    x = 6,957,373,990.46/87,866.10
  6. Step 6: Final answer
    x = 79,181.55

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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.