Home / 87,883.12-131,912.16-48,458.80

Finding the Fourth Proportional to 87,883.12, 131,912.16 and 48,458.80

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Solution

The fourth proportional to 87,883.12, 131,912.16 and 48,458.80 is: 72,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.12 : 131,912.16 = 48,458.80 : x
  2. Step 2: Convert to fraction form
    87,883.12/131,912.16 = 48,458.80/x
  3. Step 3: Cross multiply
    87,883.12x = 131,912.16 × 48,458.80
  4. Step 4: Simplify right side
    87,883.12x = 6,392,304,979.01
  5. Step 5: Solve for x
    x = 6,392,304,979.01/87,883.12
  6. Step 6: Final answer
    x = 72,736.44

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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.