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Finding the Fourth Proportional to 68,327.60, 102,534.60 and 40,247.60

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Solution

The fourth proportional to 68,327.60, 102,534.60 and 40,247.60 is: 60,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,327.60 : 102,534.60 = 40,247.60 : x
  2. Step 2: Convert to fraction form
    68,327.60/102,534.60 = 40,247.60/x
  3. Step 3: Cross multiply
    68,327.60x = 102,534.60 × 40,247.60
  4. Step 4: Simplify right side
    68,327.60x = 4,126,771,566.96
  5. Step 5: Solve for x
    x = 4,126,771,566.96/68,327.60
  6. Step 6: Final answer
    x = 60,396.85

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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.