Home / 87,398.06-131,063.70-31,227.62

Finding the Fourth Proportional to 87,398.06, 131,063.70 and 31,227.62

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Solution

The fourth proportional to 87,398.06, 131,063.70 and 31,227.62 is: 46,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,398.06 : 131,063.70 = 31,227.62 : x
  2. Step 2: Convert to fraction form
    87,398.06/131,063.70 = 31,227.62/x
  3. Step 3: Cross multiply
    87,398.06x = 131,063.70 × 31,227.62
  4. Step 4: Simplify right side
    87,398.06x = 4,092,807,419.39
  5. Step 5: Solve for x
    x = 4,092,807,419.39/87,398.06
  6. Step 6: Final answer
    x = 46,829.50

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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.