Home / 80,500.24-120,746.49-30,576.44

Finding the Fourth Proportional to 80,500.24, 120,746.49 and 30,576.44

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Solution

The fourth proportional to 80,500.24, 120,746.49 and 30,576.44 is: 45,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,500.24 : 120,746.49 = 30,576.44 : x
  2. Step 2: Convert to fraction form
    80,500.24/120,746.49 = 30,576.44/x
  3. Step 3: Cross multiply
    80,500.24x = 120,746.49 × 30,576.44
  4. Step 4: Simplify right side
    80,500.24x = 3,691,997,806.70
  5. Step 5: Solve for x
    x = 3,691,997,806.70/80,500.24
  6. Step 6: Final answer
    x = 45,863.19

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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.