Home / 86,589.30-129,896.10-27,418.80

Finding the Fourth Proportional to 86,589.30, 129,896.10 and 27,418.80

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Solution

The fourth proportional to 86,589.30, 129,896.10 and 27,418.80 is: 41,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,589.30 : 129,896.10 = 27,418.80 : x
  2. Step 2: Convert to fraction form
    86,589.30/129,896.10 = 27,418.80/x
  3. Step 3: Cross multiply
    86,589.30x = 129,896.10 × 27,418.80
  4. Step 4: Simplify right side
    86,589.30x = 3,561,595,186.68
  5. Step 5: Solve for x
    x = 3,561,595,186.68/86,589.30
  6. Step 6: Final answer
    x = 41,132.05

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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.