Home / 80,143.56-120,226.28-33,385.50

Finding the Fourth Proportional to 80,143.56, 120,226.28 and 33,385.50

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Solution

The fourth proportional to 80,143.56, 120,226.28 and 33,385.50 is: 50,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,143.56 : 120,226.28 = 33,385.50 : x
  2. Step 2: Convert to fraction form
    80,143.56/120,226.28 = 33,385.50/x
  3. Step 3: Cross multiply
    80,143.56x = 120,226.28 × 33,385.50
  4. Step 4: Simplify right side
    80,143.56x = 4,013,814,470.94
  5. Step 5: Solve for x
    x = 4,013,814,470.94/80,143.56
  6. Step 6: Final answer
    x = 50,082.81

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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.