Home / 87,711.30-131,378.22-50,166

Finding the Fourth Proportional to 87,711.30, 131,378.22 and 50,166

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Solution

The fourth proportional to 87,711.30, 131,378.22 and 50,166 is: 75,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,711.30 : 131,378.22 = 50,166 : x
  2. Step 2: Convert to fraction form
    87,711.30/131,378.22 = 50,166/x
  3. Step 3: Cross multiply
    87,711.30x = 131,378.22 × 50,166
  4. Step 4: Simplify right side
    87,711.30x = 6,590,719,784.52
  5. Step 5: Solve for x
    x = 6,590,719,784.52/87,711.30
  6. Step 6: Final answer
    x = 75,141.06

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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.