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Finding the Fourth Proportional to 40,003.70, 60,042.42 and 20,296.04

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Solution

The fourth proportional to 40,003.70, 60,042.42 and 20,296.04 is: 30,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,003.70 : 60,042.42 = 20,296.04 : x
  2. Step 2: Convert to fraction form
    40,003.70/60,042.42 = 20,296.04/x
  3. Step 3: Cross multiply
    40,003.70x = 60,042.42 × 20,296.04
  4. Step 4: Simplify right side
    40,003.70x = 1,218,623,358.02
  5. Step 5: Solve for x
    x = 1,218,623,358.02/40,003.70
  6. Step 6: Final answer
    x = 30,462.77

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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.