Home / 87,793.44-131,433.12-54,412.80

Finding the Fourth Proportional to 87,793.44, 131,433.12 and 54,412.80

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Solution

The fourth proportional to 87,793.44, 131,433.12 and 54,412.80 is: 81,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,793.44 : 131,433.12 = 54,412.80 : x
  2. Step 2: Convert to fraction form
    87,793.44/131,433.12 = 54,412.80/x
  3. Step 3: Cross multiply
    87,793.44x = 131,433.12 × 54,412.80
  4. Step 4: Simplify right side
    87,793.44x = 7,151,644,071.94
  5. Step 5: Solve for x
    x = 7,151,644,071.94/87,793.44
  6. Step 6: Final answer
    x = 81,459.89

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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.