Home / 87,891.23-131,727.19-42,875.48

Finding the Fourth Proportional to 87,891.23, 131,727.19 and 42,875.48

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Solution

The fourth proportional to 87,891.23, 131,727.19 and 42,875.48 is: 64,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,891.23 : 131,727.19 = 42,875.48 : x
  2. Step 2: Convert to fraction form
    87,891.23/131,727.19 = 42,875.48/x
  3. Step 3: Cross multiply
    87,891.23x = 131,727.19 × 42,875.48
  4. Step 4: Simplify right side
    87,891.23x = 5,647,866,500.30
  5. Step 5: Solve for x
    x = 5,647,866,500.30/87,891.23
  6. Step 6: Final answer
    x = 64,259.73

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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.