Home / 71,424.22-107,135.13-17,389.47

Finding the Fourth Proportional to 71,424.22, 107,135.13 and 17,389.47

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Solution

The fourth proportional to 71,424.22, 107,135.13 and 17,389.47 is: 26,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,424.22 : 107,135.13 = 17,389.47 : x
  2. Step 2: Convert to fraction form
    71,424.22/107,135.13 = 17,389.47/x
  3. Step 3: Cross multiply
    71,424.22x = 107,135.13 × 17,389.47
  4. Step 4: Simplify right side
    71,424.22x = 1,863,023,129.08
  5. Step 5: Solve for x
    x = 1,863,023,129.08/71,424.22
  6. Step 6: Final answer
    x = 26,083.91

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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.