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Finding the Fourth Proportional to 80,002.30, 120,003.45 and 50,550.70

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Solution

The fourth proportional to 80,002.30, 120,003.45 and 50,550.70 is: 75,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,002.30 : 120,003.45 = 50,550.70 : x
  2. Step 2: Convert to fraction form
    80,002.30/120,003.45 = 50,550.70/x
  3. Step 3: Cross multiply
    80,002.30x = 120,003.45 × 50,550.70
  4. Step 4: Simplify right side
    80,002.30x = 6,066,258,399.92
  5. Step 5: Solve for x
    x = 6,066,258,399.92/80,002.30
  6. Step 6: Final answer
    x = 75,826.05

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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.