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Finding the Fourth Proportional to 45,374.40, 68,061.60 and 25,691.40

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Solution

The fourth proportional to 45,374.40, 68,061.60 and 25,691.40 is: 38,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,374.40 : 68,061.60 = 25,691.40 : x
  2. Step 2: Convert to fraction form
    45,374.40/68,061.60 = 25,691.40/x
  3. Step 3: Cross multiply
    45,374.40x = 68,061.60 × 25,691.40
  4. Step 4: Simplify right side
    45,374.40x = 1,748,597,790.24
  5. Step 5: Solve for x
    x = 1,748,597,790.24/45,374.40
  6. Step 6: Final answer
    x = 38,537.10

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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.