Home / 87,883.82-131,824.47-21,324.50

Finding the Fourth Proportional to 87,883.82, 131,824.47 and 21,324.50

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Solution

The fourth proportional to 87,883.82, 131,824.47 and 21,324.50 is: 31,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.82 : 131,824.47 = 21,324.50 : x
  2. Step 2: Convert to fraction form
    87,883.82/131,824.47 = 21,324.50/x
  3. Step 3: Cross multiply
    87,883.82x = 131,824.47 × 21,324.50
  4. Step 4: Simplify right side
    87,883.82x = 2,811,090,910.52
  5. Step 5: Solve for x
    x = 2,811,090,910.52/87,883.82
  6. Step 6: Final answer
    x = 31,986.44

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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.