Home / 87,445.20-131,168.52-54,261.84

Finding the Fourth Proportional to 87,445.20, 131,168.52 and 54,261.84

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Solution

The fourth proportional to 87,445.20, 131,168.52 and 54,261.84 is: 81,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.20 : 131,168.52 = 54,261.84 : x
  2. Step 2: Convert to fraction form
    87,445.20/131,168.52 = 54,261.84/x
  3. Step 3: Cross multiply
    87,445.20x = 131,168.52 × 54,261.84
  4. Step 4: Simplify right side
    87,445.20x = 7,117,445,245.28
  5. Step 5: Solve for x
    x = 7,117,445,245.28/87,445.20
  6. Step 6: Final answer
    x = 81,393.21

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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.