Home / 87,736.32-131,613.70-28,576.60

Finding the Fourth Proportional to 87,736.32, 131,613.70 and 28,576.60

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Solution

The fourth proportional to 87,736.32, 131,613.70 and 28,576.60 is: 42,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,736.32 : 131,613.70 = 28,576.60 : x
  2. Step 2: Convert to fraction form
    87,736.32/131,613.70 = 28,576.60/x
  3. Step 3: Cross multiply
    87,736.32x = 131,613.70 × 28,576.60
  4. Step 4: Simplify right side
    87,736.32x = 3,761,071,658.94
  5. Step 5: Solve for x
    x = 3,761,071,658.94/87,736.32
  6. Step 6: Final answer
    x = 42,867.90

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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.