Home / 71,418.47-107,141.24-28,727.16

Finding the Fourth Proportional to 71,418.47, 107,141.24 and 28,727.16

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Solution

The fourth proportional to 71,418.47, 107,141.24 and 28,727.16 is: 43,096.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.47 : 107,141.24 = 28,727.16 : x
  2. Step 2: Convert to fraction form
    71,418.47/107,141.24 = 28,727.16/x
  3. Step 3: Cross multiply
    71,418.47x = 107,141.24 × 28,727.16
  4. Step 4: Simplify right side
    71,418.47x = 3,077,863,400.44
  5. Step 5: Solve for x
    x = 3,077,863,400.44/71,418.47
  6. Step 6: Final answer
    x = 43,096.19

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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.