Home / 84,422.91-126,543.24-54,861.96

Finding the Fourth Proportional to 84,422.91, 126,543.24 and 54,861.96

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Solution

The fourth proportional to 84,422.91, 126,543.24 and 54,861.96 is: 82,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,422.91 : 126,543.24 = 54,861.96 : x
  2. Step 2: Convert to fraction form
    84,422.91/126,543.24 = 54,861.96/x
  3. Step 3: Cross multiply
    84,422.91x = 126,543.24 × 54,861.96
  4. Step 4: Simplify right side
    84,422.91x = 6,942,410,171.15
  5. Step 5: Solve for x
    x = 6,942,410,171.15/84,422.91
  6. Step 6: Final answer
    x = 82,233.72

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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.