Home / 87,524.08-131,329-54,235.28

Finding the Fourth Proportional to 87,524.08, 131,329 and 54,235.28

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Solution

The fourth proportional to 87,524.08, 131,329 and 54,235.28 is: 81,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,524.08 : 131,329 = 54,235.28 : x
  2. Step 2: Convert to fraction form
    87,524.08/131,329 = 54,235.28/x
  3. Step 3: Cross multiply
    87,524.08x = 131,329 × 54,235.28
  4. Step 4: Simplify right side
    87,524.08x = 7,122,665,087.12
  5. Step 5: Solve for x
    x = 7,122,665,087.12/87,524.08
  6. Step 6: Final answer
    x = 81,379.49

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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.