Home / 86,251.19-129,335.82-30,084.48

Finding the Fourth Proportional to 86,251.19, 129,335.82 and 30,084.48

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Solution

The fourth proportional to 86,251.19, 129,335.82 and 30,084.48 is: 45,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,251.19 : 129,335.82 = 30,084.48 : x
  2. Step 2: Convert to fraction form
    86,251.19/129,335.82 = 30,084.48/x
  3. Step 3: Cross multiply
    86,251.19x = 129,335.82 × 30,084.48
  4. Step 4: Simplify right side
    86,251.19x = 3,891,000,890.07
  5. Step 5: Solve for x
    x = 3,891,000,890.07/86,251.19
  6. Step 6: Final answer
    x = 45,112.43

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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.