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Finding the Fourth Proportional to 40,480.80, 60,733.10 and 20,773.12

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Solution

The fourth proportional to 40,480.80, 60,733.10 and 20,773.12 is: 31,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,480.80 : 60,733.10 = 20,773.12 : x
  2. Step 2: Convert to fraction form
    40,480.80/60,733.10 = 20,773.12/x
  3. Step 3: Cross multiply
    40,480.80x = 60,733.10 × 20,773.12
  4. Step 4: Simplify right side
    40,480.80x = 1,261,615,974.27
  5. Step 5: Solve for x
    x = 1,261,615,974.27/40,480.80
  6. Step 6: Final answer
    x = 31,165.79

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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.