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Finding the Fourth Proportional to 68,978.70, 103,480.20 and 24,631.20

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Solution

The fourth proportional to 68,978.70, 103,480.20 and 24,631.20 is: 36,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,978.70 : 103,480.20 = 24,631.20 : x
  2. Step 2: Convert to fraction form
    68,978.70/103,480.20 = 24,631.20/x
  3. Step 3: Cross multiply
    68,978.70x = 103,480.20 × 24,631.20
  4. Step 4: Simplify right side
    68,978.70x = 2,548,841,502.24
  5. Step 5: Solve for x
    x = 2,548,841,502.24/68,978.70
  6. Step 6: Final answer
    x = 36,951.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.