Home / 86,418.46-129,630.49-27,254.70

Finding the Fourth Proportional to 86,418.46, 129,630.49 and 27,254.70

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Solution

The fourth proportional to 86,418.46, 129,630.49 and 27,254.70 is: 40,882.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418.46 : 129,630.49 = 27,254.70 : x
  2. Step 2: Convert to fraction form
    86,418.46/129,630.49 = 27,254.70/x
  3. Step 3: Cross multiply
    86,418.46x = 129,630.49 × 27,254.70
  4. Step 4: Simplify right side
    86,418.46x = 3,533,040,115.80
  5. Step 5: Solve for x
    x = 3,533,040,115.80/86,418.46
  6. Step 6: Final answer
    x = 40,882.93

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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.