Home / 87,914.62-131,778.96-28,734.40

Finding the Fourth Proportional to 87,914.62, 131,778.96 and 28,734.40

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Solution

The fourth proportional to 87,914.62, 131,778.96 and 28,734.40 is: 43,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,914.62 : 131,778.96 = 28,734.40 : x
  2. Step 2: Convert to fraction form
    87,914.62/131,778.96 = 28,734.40/x
  3. Step 3: Cross multiply
    87,914.62x = 131,778.96 × 28,734.40
  4. Step 4: Simplify right side
    87,914.62x = 3,786,589,348.22
  5. Step 5: Solve for x
    x = 3,786,589,348.22/87,914.62
  6. Step 6: Final answer
    x = 43,071.21

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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.