Home / 87,823.98-131,736.30-21,264

Finding the Fourth Proportional to 87,823.98, 131,736.30 and 21,264

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Solution

The fourth proportional to 87,823.98, 131,736.30 and 21,264 is: 31,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,823.98 : 131,736.30 = 21,264 : x
  2. Step 2: Convert to fraction form
    87,823.98/131,736.30 = 21,264/x
  3. Step 3: Cross multiply
    87,823.98x = 131,736.30 × 21,264
  4. Step 4: Simplify right side
    87,823.98x = 2,801,240,683.20
  5. Step 5: Solve for x
    x = 2,801,240,683.20/87,823.98
  6. Step 6: Final answer
    x = 31,896.08

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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.