Home / 86,251.30-129,382.44-27,089.31

Finding the Fourth Proportional to 86,251.30, 129,382.44 and 27,089.31

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Solution

The fourth proportional to 86,251.30, 129,382.44 and 27,089.31 is: 40,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,251.30 : 129,382.44 = 27,089.31 : x
  2. Step 2: Convert to fraction form
    86,251.30/129,382.44 = 27,089.31/x
  3. Step 3: Cross multiply
    86,251.30x = 129,382.44 × 27,089.31
  4. Step 4: Simplify right side
    86,251.30x = 3,504,881,025.72
  5. Step 5: Solve for x
    x = 3,504,881,025.72/86,251.30
  6. Step 6: Final answer
    x = 40,635.69

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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.