Home / 87,350.58-131,042.61-28,170.36

Finding the Fourth Proportional to 87,350.58, 131,042.61 and 28,170.36

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Solution

The fourth proportional to 87,350.58, 131,042.61 and 28,170.36 is: 42,260.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,350.58 : 131,042.61 = 28,170.36 : x
  2. Step 2: Convert to fraction form
    87,350.58/131,042.61 = 28,170.36/x
  3. Step 3: Cross multiply
    87,350.58x = 131,042.61 × 28,170.36
  4. Step 4: Simplify right side
    87,350.58x = 3,691,517,499.04
  5. Step 5: Solve for x
    x = 3,691,517,499.04/87,350.58
  6. Step 6: Final answer
    x = 42,260.94

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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.