Home / 71,382.14-107,031.72-27,012.32

Finding the Fourth Proportional to 71,382.14, 107,031.72 and 27,012.32

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Solution

The fourth proportional to 71,382.14, 107,031.72 and 27,012.32 is: 40,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.14 : 107,031.72 = 27,012.32 : x
  2. Step 2: Convert to fraction form
    71,382.14/107,031.72 = 27,012.32/x
  3. Step 3: Cross multiply
    71,382.14x = 107,031.72 × 27,012.32
  4. Step 4: Simplify right side
    71,382.14x = 2,891,175,070.79
  5. Step 5: Solve for x
    x = 2,891,175,070.79/71,382.14
  6. Step 6: Final answer
    x = 40,502.78

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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.