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Finding the Fourth Proportional to 50,103.80, 75,009.90 and 30,372.20

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Solution

The fourth proportional to 50,103.80, 75,009.90 and 30,372.20 is: 45,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,103.80 : 75,009.90 = 30,372.20 : x
  2. Step 2: Convert to fraction form
    50,103.80/75,009.90 = 30,372.20/x
  3. Step 3: Cross multiply
    50,103.80x = 75,009.90 × 30,372.20
  4. Step 4: Simplify right side
    50,103.80x = 2,278,215,684.78
  5. Step 5: Solve for x
    x = 2,278,215,684.78/50,103.80
  6. Step 6: Final answer
    x = 45,469.92

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1.5x scale

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.