Home / 87,723.82-131,584.58-21,163.48

Finding the Fourth Proportional to 87,723.82, 131,584.58 and 21,163.48

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Solution

The fourth proportional to 87,723.82, 131,584.58 and 21,163.48 is: 31,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,723.82 : 131,584.58 = 21,163.48 : x
  2. Step 2: Convert to fraction form
    87,723.82/131,584.58 = 21,163.48/x
  3. Step 3: Cross multiply
    87,723.82x = 131,584.58 × 21,163.48
  4. Step 4: Simplify right side
    87,723.82x = 2,784,787,627.14
  5. Step 5: Solve for x
    x = 2,784,787,627.14/87,723.82
  6. Step 6: Final answer
    x = 31,744.94

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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.