Home / 80,286.10-120,435.38-24,121.82

Finding the Fourth Proportional to 80,286.10, 120,435.38 and 24,121.82

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Solution

The fourth proportional to 80,286.10, 120,435.38 and 24,121.82 is: 36,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,286.10 : 120,435.38 = 24,121.82 : x
  2. Step 2: Convert to fraction form
    80,286.10/120,435.38 = 24,121.82/x
  3. Step 3: Cross multiply
    80,286.10x = 120,435.38 × 24,121.82
  4. Step 4: Simplify right side
    80,286.10x = 2,905,120,557.99
  5. Step 5: Solve for x
    x = 2,905,120,557.99/80,286.10
  6. Step 6: Final answer
    x = 36,184.60

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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.