Home / 87,612.70-131,419.05-50,748.70

Finding the Fourth Proportional to 87,612.70, 131,419.05 and 50,748.70

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Solution

The fourth proportional to 87,612.70, 131,419.05 and 50,748.70 is: 76,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,612.70 : 131,419.05 = 50,748.70 : x
  2. Step 2: Convert to fraction form
    87,612.70/131,419.05 = 50,748.70/x
  3. Step 3: Cross multiply
    87,612.70x = 131,419.05 × 50,748.70
  4. Step 4: Simplify right side
    87,612.70x = 6,669,345,942.74
  5. Step 5: Solve for x
    x = 6,669,345,942.74/87,612.70
  6. Step 6: Final answer
    x = 76,123.05

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1.5x scale

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.