Home / 82,378.37-123,586.46-29,787.85

Finding the Fourth Proportional to 82,378.37, 123,586.46 and 29,787.85

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Solution

The fourth proportional to 82,378.37, 123,586.46 and 29,787.85 is: 44,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,378.37 : 123,586.46 = 29,787.85 : x
  2. Step 2: Convert to fraction form
    82,378.37/123,586.46 = 29,787.85/x
  3. Step 3: Cross multiply
    82,378.37x = 123,586.46 × 29,787.85
  4. Step 4: Simplify right side
    82,378.37x = 3,681,375,049.76
  5. Step 5: Solve for x
    x = 3,681,375,049.76/82,378.37
  6. Step 6: Final answer
    x = 44,688.61

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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.