Home / 84,511.38-126,584.83-79,542.96

Finding the Fourth Proportional to 84,511.38, 126,584.83 and 79,542.96

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Solution

The fourth proportional to 84,511.38, 126,584.83 and 79,542.96 is: 119,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,511.38 : 126,584.83 = 79,542.96 : x
  2. Step 2: Convert to fraction form
    84,511.38/126,584.83 = 79,542.96/x
  3. Step 3: Cross multiply
    84,511.38x = 126,584.83 × 79,542.96
  4. Step 4: Simplify right side
    84,511.38x = 10,068,932,069.30
  5. Step 5: Solve for x
    x = 10,068,932,069.30/84,511.38
  6. Step 6: Final answer
    x = 119,142.91

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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.