Home / 87,884.62-131,826.72-21,324.69

Finding the Fourth Proportional to 87,884.62, 131,826.72 and 21,324.69

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Solution

The fourth proportional to 87,884.62, 131,826.72 and 21,324.69 is: 31,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,884.62 : 131,826.72 = 21,324.69 : x
  2. Step 2: Convert to fraction form
    87,884.62/131,826.72 = 21,324.69/x
  3. Step 3: Cross multiply
    87,884.62x = 131,826.72 × 21,324.69
  4. Step 4: Simplify right side
    87,884.62x = 2,811,163,831.09
  5. Step 5: Solve for x
    x = 2,811,163,831.09/87,884.62
  6. Step 6: Final answer
    x = 31,986.98

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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.