Home / 87,712.94-131,538.36-28,537.58

Finding the Fourth Proportional to 87,712.94, 131,538.36 and 28,537.58

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Solution

The fourth proportional to 87,712.94, 131,538.36 and 28,537.58 is: 42,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,712.94 : 131,538.36 = 28,537.58 : x
  2. Step 2: Convert to fraction form
    87,712.94/131,538.36 = 28,537.58/x
  3. Step 3: Cross multiply
    87,712.94x = 131,538.36 × 28,537.58
  4. Step 4: Simplify right side
    87,712.94x = 3,753,786,471.57
  5. Step 5: Solve for x
    x = 3,753,786,471.57/87,712.94
  6. Step 6: Final answer
    x = 42,796.27

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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.