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Finding the Fourth Proportional to 40,348.80, 60,552.96 and 20,377.44

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Solution

The fourth proportional to 40,348.80, 60,552.96 and 20,377.44 is: 30,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,348.80 : 60,552.96 = 20,377.44 : x
  2. Step 2: Convert to fraction form
    40,348.80/60,552.96 = 20,377.44/x
  3. Step 3: Cross multiply
    40,348.80x = 60,552.96 × 20,377.44
  4. Step 4: Simplify right side
    40,348.80x = 1,233,914,309.22
  5. Step 5: Solve for x
    x = 1,233,914,309.22/40,348.80
  6. Step 6: Final answer
    x = 30,581.19

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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.