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Finding the Fourth Proportional to 63,680.80, 95,521.20 and 57,557.20

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Solution

The fourth proportional to 63,680.80, 95,521.20 and 57,557.20 is: 86,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,680.80 : 95,521.20 = 57,557.20 : x
  2. Step 2: Convert to fraction form
    63,680.80/95,521.20 = 57,557.20/x
  3. Step 3: Cross multiply
    63,680.80x = 95,521.20 × 57,557.20
  4. Step 4: Simplify right side
    63,680.80x = 5,497,932,812.64
  5. Step 5: Solve for x
    x = 5,497,932,812.64/63,680.80
  6. Step 6: Final answer
    x = 86,335.80

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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.