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Finding the Fourth Proportional to 87,114.76, 130,659.84 and 27,942.73

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Solution

The fourth proportional to 87,114.76, 130,659.84 and 27,942.73 is: 41,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,114.76 : 130,659.84 = 27,942.73 : x
  2. Step 2: Convert to fraction form
    87,114.76/130,659.84 = 27,942.73/x
  3. Step 3: Cross multiply
    87,114.76x = 130,659.84 × 27,942.73
  4. Step 4: Simplify right side
    87,114.76x = 3,650,992,630.96
  5. Step 5: Solve for x
    x = 3,650,992,630.96/87,114.76
  6. Step 6: Final answer
    x = 41,910.15

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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.