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Finding the Fourth Proportional to 63,819.20, 95,728.80 and 60,757.40

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Solution

The fourth proportional to 63,819.20, 95,728.80 and 60,757.40 is: 91,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,819.20 : 95,728.80 = 60,757.40 : x
  2. Step 2: Convert to fraction form
    63,819.20/95,728.80 = 60,757.40/x
  3. Step 3: Cross multiply
    63,819.20x = 95,728.80 × 60,757.40
  4. Step 4: Simplify right side
    63,819.20x = 5,816,232,993.12
  5. Step 5: Solve for x
    x = 5,816,232,993.12/63,819.20
  6. Step 6: Final answer
    x = 91,136.10

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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.