Home / 87,881.96-131,781.51-31,714.73

Finding the Fourth Proportional to 87,881.96, 131,781.51 and 31,714.73

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Solution

The fourth proportional to 87,881.96, 131,781.51 and 31,714.73 is: 47,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.96 : 131,781.51 = 31,714.73 : x
  2. Step 2: Convert to fraction form
    87,881.96/131,781.51 = 31,714.73/x
  3. Step 3: Cross multiply
    87,881.96x = 131,781.51 × 31,714.73
  4. Step 4: Simplify right side
    87,881.96x = 4,179,415,008.64
  5. Step 5: Solve for x
    x = 4,179,415,008.64/87,881.96
  6. Step 6: Final answer
    x = 47,557.14

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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.