Home / 87,742.44-131,613.39-28,577.97

Finding the Fourth Proportional to 87,742.44, 131,613.39 and 28,577.97

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Solution

The fourth proportional to 87,742.44, 131,613.39 and 28,577.97 is: 42,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,742.44 : 131,613.39 = 28,577.97 : x
  2. Step 2: Convert to fraction form
    87,742.44/131,613.39 = 28,577.97/x
  3. Step 3: Cross multiply
    87,742.44x = 131,613.39 × 28,577.97
  4. Step 4: Simplify right side
    87,742.44x = 3,761,243,511.02
  5. Step 5: Solve for x
    x = 3,761,243,511.02/87,742.44
  6. Step 6: Final answer
    x = 42,866.87

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1.5x scale

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.