Home / 87,830.66-131,665.26-31,657.02

Finding the Fourth Proportional to 87,830.66, 131,665.26 and 31,657.02

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Solution

The fourth proportional to 87,830.66, 131,665.26 and 31,657.02 is: 47,456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,830.66 : 131,665.26 = 31,657.02 : x
  2. Step 2: Convert to fraction form
    87,830.66/131,665.26 = 31,657.02/x
  3. Step 3: Cross multiply
    87,830.66x = 131,665.26 × 31,657.02
  4. Step 4: Simplify right side
    87,830.66x = 4,168,129,769.13
  5. Step 5: Solve for x
    x = 4,168,129,769.13/87,830.66
  6. Step 6: Final answer
    x = 47,456.43

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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.