Home / 80,541.92-120,826.92-30,626.30

Finding the Fourth Proportional to 80,541.92, 120,826.92 and 30,626.30

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Solution

The fourth proportional to 80,541.92, 120,826.92 and 30,626.30 is: 45,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.92 : 120,826.92 = 30,626.30 : x
  2. Step 2: Convert to fraction form
    80,541.92/120,826.92 = 30,626.30/x
  3. Step 3: Cross multiply
    80,541.92x = 120,826.92 × 30,626.30
  4. Step 4: Simplify right side
    80,541.92x = 3,700,481,500.00
  5. Step 5: Solve for x
    x = 3,700,481,500.00/80,541.92
  6. Step 6: Final answer
    x = 45,944.79

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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.