Home / 87,828.98-131,743.80-21,269

Finding the Fourth Proportional to 87,828.98, 131,743.80 and 21,269

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Solution

The fourth proportional to 87,828.98, 131,743.80 and 21,269 is: 31,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,828.98 : 131,743.80 = 21,269 : x
  2. Step 2: Convert to fraction form
    87,828.98/131,743.80 = 21,269/x
  3. Step 3: Cross multiply
    87,828.98x = 131,743.80 × 21,269
  4. Step 4: Simplify right side
    87,828.98x = 2,802,058,882.20
  5. Step 5: Solve for x
    x = 2,802,058,882.20/87,828.98
  6. Step 6: Final answer
    x = 31,903.58

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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.