Home / 71,424.07-107,138.13-27,042.55

Finding the Fourth Proportional to 71,424.07, 107,138.13 and 27,042.55

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Solution

The fourth proportional to 71,424.07, 107,138.13 and 27,042.55 is: 40,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,424.07 : 107,138.13 = 27,042.55 : x
  2. Step 2: Convert to fraction form
    71,424.07/107,138.13 = 27,042.55/x
  3. Step 3: Cross multiply
    71,424.07x = 107,138.13 × 27,042.55
  4. Step 4: Simplify right side
    71,424.07x = 2,897,288,237.43
  5. Step 5: Solve for x
    x = 2,897,288,237.43/71,424.07
  6. Step 6: Final answer
    x = 40,564.59

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1.5x scale

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.