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Finding the Fourth Proportional to 40,314.80, 60,472.20 and 25,540.40

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Solution

The fourth proportional to 40,314.80, 60,472.20 and 25,540.40 is: 38,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,314.80 : 60,472.20 = 25,540.40 : x
  2. Step 2: Convert to fraction form
    40,314.80/60,472.20 = 25,540.40/x
  3. Step 3: Cross multiply
    40,314.80x = 60,472.20 × 25,540.40
  4. Step 4: Simplify right side
    40,314.80x = 1,544,484,176.88
  5. Step 5: Solve for x
    x = 1,544,484,176.88/40,314.80
  6. Step 6: Final answer
    x = 38,310.60

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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.