Home / 80,002.20-120,003.30-33,346.20

Finding the Fourth Proportional to 80,002.20, 120,003.30 and 33,346.20

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Solution

The fourth proportional to 80,002.20, 120,003.30 and 33,346.20 is: 50,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,002.20 : 120,003.30 = 33,346.20 : x
  2. Step 2: Convert to fraction form
    80,002.20/120,003.30 = 33,346.20/x
  3. Step 3: Cross multiply
    80,002.20x = 120,003.30 × 33,346.20
  4. Step 4: Simplify right side
    80,002.20x = 4,001,654,042.46
  5. Step 5: Solve for x
    x = 4,001,654,042.46/80,002.20
  6. Step 6: Final answer
    x = 50,019.30

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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.