Home / 71,387.35-107,081.27-18,079.31

Finding the Fourth Proportional to 71,387.35, 107,081.27 and 18,079.31

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Solution

The fourth proportional to 71,387.35, 107,081.27 and 18,079.31 is: 27,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,387.35 : 107,081.27 = 18,079.31 : x
  2. Step 2: Convert to fraction form
    71,387.35/107,081.27 = 18,079.31/x
  3. Step 3: Cross multiply
    71,387.35x = 107,081.27 × 18,079.31
  4. Step 4: Simplify right side
    71,387.35x = 1,935,955,385.13
  5. Step 5: Solve for x
    x = 1,935,955,385.13/71,387.35
  6. Step 6: Final answer
    x = 27,119.03

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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.