Home / 87,691.88-131,539.44-28,527.32

Finding the Fourth Proportional to 87,691.88, 131,539.44 and 28,527.32

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Solution

The fourth proportional to 87,691.88, 131,539.44 and 28,527.32 is: 42,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,691.88 : 131,539.44 = 28,527.32 : x
  2. Step 2: Convert to fraction form
    87,691.88/131,539.44 = 28,527.32/x
  3. Step 3: Cross multiply
    87,691.88x = 131,539.44 × 28,527.32
  4. Step 4: Simplify right side
    87,691.88x = 3,752,467,697.50
  5. Step 5: Solve for x
    x = 3,752,467,697.50/87,691.88
  6. Step 6: Final answer
    x = 42,791.51

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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.