Home / 87,834.26-131,736.36-31,663.20

Finding the Fourth Proportional to 87,834.26, 131,736.36 and 31,663.20

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Solution

The fourth proportional to 87,834.26, 131,736.36 and 31,663.20 is: 47,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.26 : 131,736.36 = 31,663.20 : x
  2. Step 2: Convert to fraction form
    87,834.26/131,736.36 = 31,663.20/x
  3. Step 3: Cross multiply
    87,834.26x = 131,736.36 × 31,663.20
  4. Step 4: Simplify right side
    87,834.26x = 4,171,194,713.95
  5. Step 5: Solve for x
    x = 4,171,194,713.95/87,834.26
  6. Step 6: Final answer
    x = 47,489.38

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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.