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Finding the Fourth Proportional to 40,474.40, 60,614.40 and 38,724.80

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Solution

The fourth proportional to 40,474.40, 60,614.40 and 38,724.80 is: 57,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,474.40 : 60,614.40 = 38,724.80 : x
  2. Step 2: Convert to fraction form
    40,474.40/60,614.40 = 38,724.80/x
  3. Step 3: Cross multiply
    40,474.40x = 60,614.40 × 38,724.80
  4. Step 4: Simplify right side
    40,474.40x = 2,347,280,517.12
  5. Step 5: Solve for x
    x = 2,347,280,517.12/40,474.40
  6. Step 6: Final answer
    x = 57,994.20

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1.5x scale

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.