Home / 87,958.20-131,957.80-28,790.28

Finding the Fourth Proportional to 87,958.20, 131,957.80 and 28,790.28

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Solution

The fourth proportional to 87,958.20, 131,957.80 and 28,790.28 is: 43,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,958.20 : 131,957.80 = 28,790.28 : x
  2. Step 2: Convert to fraction form
    87,958.20/131,957.80 = 28,790.28/x
  3. Step 3: Cross multiply
    87,958.20x = 131,957.80 × 28,790.28
  4. Step 4: Simplify right side
    87,958.20x = 3,799,102,010.18
  5. Step 5: Solve for x
    x = 3,799,102,010.18/87,958.20
  6. Step 6: Final answer
    x = 43,192.13

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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.