Home / 87,879.10-131,906.14-48,454.78

Finding the Fourth Proportional to 87,879.10, 131,906.14 and 48,454.78

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Solution

The fourth proportional to 87,879.10, 131,906.14 and 48,454.78 is: 72,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.10 : 131,906.14 = 48,454.78 : x
  2. Step 2: Convert to fraction form
    87,879.10/131,906.14 = 48,454.78/x
  3. Step 3: Cross multiply
    87,879.10x = 131,906.14 × 48,454.78
  4. Step 4: Simplify right side
    87,879.10x = 6,391,482,994.35
  5. Step 5: Solve for x
    x = 6,391,482,994.35/87,879.10
  6. Step 6: Final answer
    x = 72,730.41

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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.