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Finding the Fourth Proportional to 40,310.80, 60,401.40 and 29,813.20

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Solution

The fourth proportional to 40,310.80, 60,401.40 and 29,813.20 is: 44,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.80 : 60,401.40 = 29,813.20 : x
  2. Step 2: Convert to fraction form
    40,310.80/60,401.40 = 29,813.20/x
  3. Step 3: Cross multiply
    40,310.80x = 60,401.40 × 29,813.20
  4. Step 4: Simplify right side
    40,310.80x = 1,800,759,018.48
  5. Step 5: Solve for x
    x = 1,800,759,018.48/40,310.80
  6. Step 6: Final answer
    x = 44,671.87

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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.