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Finding the Fourth Proportional to 80,773.68, 121,172.04 and 25,374

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Solution

The fourth proportional to 80,773.68, 121,172.04 and 25,374 is: 38,064.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,773.68 : 121,172.04 = 25,374 : x
  2. Step 2: Convert to fraction form
    80,773.68/121,172.04 = 25,374/x
  3. Step 3: Cross multiply
    80,773.68x = 121,172.04 × 25,374
  4. Step 4: Simplify right side
    80,773.68x = 3,074,619,342.96
  5. Step 5: Solve for x
    x = 3,074,619,342.96/80,773.68
  6. Step 6: Final answer
    x = 38,064.62

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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.