Home / 87,446.60-131,429.10-76,041.80

Finding the Fourth Proportional to 87,446.60, 131,429.10 and 76,041.80

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Solution

The fourth proportional to 87,446.60, 131,429.10 and 76,041.80 is: 114,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,446.60 : 131,429.10 = 76,041.80 : x
  2. Step 2: Convert to fraction form
    87,446.60/131,429.10 = 76,041.80/x
  3. Step 3: Cross multiply
    87,446.60x = 131,429.10 × 76,041.80
  4. Step 4: Simplify right side
    87,446.60x = 9,994,105,336.38
  5. Step 5: Solve for x
    x = 9,994,105,336.38/87,446.60
  6. Step 6: Final answer
    x = 114,288.10

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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.