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Finding the Fourth Proportional to 63,385.20, 95,077.80 and 40,114.80

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Solution

The fourth proportional to 63,385.20, 95,077.80 and 40,114.80 is: 60,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,385.20 : 95,077.80 = 40,114.80 : x
  2. Step 2: Convert to fraction form
    63,385.20/95,077.80 = 40,114.80/x
  3. Step 3: Cross multiply
    63,385.20x = 95,077.80 × 40,114.80
  4. Step 4: Simplify right side
    63,385.20x = 3,814,026,931.44
  5. Step 5: Solve for x
    x = 3,814,026,931.44/63,385.20
  6. Step 6: Final answer
    x = 60,172.20

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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.