Home / 87,906.12-131,876.16-28,725.84

Finding the Fourth Proportional to 87,906.12, 131,876.16 and 28,725.84

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Solution

The fourth proportional to 87,906.12, 131,876.16 and 28,725.84 is: 43,094.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.12 : 131,876.16 = 28,725.84 : x
  2. Step 2: Convert to fraction form
    87,906.12/131,876.16 = 28,725.84/x
  3. Step 3: Cross multiply
    87,906.12x = 131,876.16 × 28,725.84
  4. Step 4: Simplify right side
    87,906.12x = 3,788,253,471.97
  5. Step 5: Solve for x
    x = 3,788,253,471.97/87,906.12
  6. Step 6: Final answer
    x = 43,094.31

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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.