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Finding the Fourth Proportional to 40,316.80, 60,410.40 and 29,819.20

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Solution

The fourth proportional to 40,316.80, 60,410.40 and 29,819.20 is: 44,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,316.80 : 60,410.40 = 29,819.20 : x
  2. Step 2: Convert to fraction form
    40,316.80/60,410.40 = 29,819.20/x
  3. Step 3: Cross multiply
    40,316.80x = 60,410.40 × 29,819.20
  4. Step 4: Simplify right side
    40,316.80x = 1,801,389,799.68
  5. Step 5: Solve for x
    x = 1,801,389,799.68/40,316.80
  6. Step 6: Final answer
    x = 44,680.87

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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.