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Finding the Fourth Proportional to 80,744, 121,135.44 and 25,340

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Solution

The fourth proportional to 80,744, 121,135.44 and 25,340 is: 38,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,744 : 121,135.44 = 25,340 : x
  2. Step 2: Convert to fraction form
    80,744/121,135.44 = 25,340/x
  3. Step 3: Cross multiply
    80,744x = 121,135.44 × 25,340
  4. Step 4: Simplify right side
    80,744x = 3,069,572,049.60
  5. Step 5: Solve for x
    x = 3,069,572,049.60/80,744
  6. Step 6: Final answer
    x = 38,016.10

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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.