Home / 71,939.70-107,921.88-22,018.56

Finding the Fourth Proportional to 71,939.70, 107,921.88 and 22,018.56

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Solution

The fourth proportional to 71,939.70, 107,921.88 and 22,018.56 is: 33,031.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,939.70 : 107,921.88 = 22,018.56 : x
  2. Step 2: Convert to fraction form
    71,939.70/107,921.88 = 22,018.56/x
  3. Step 3: Cross multiply
    71,939.70x = 107,921.88 × 22,018.56
  4. Step 4: Simplify right side
    71,939.70x = 2,376,284,390.09
  5. Step 5: Solve for x
    x = 2,376,284,390.09/71,939.70
  6. Step 6: Final answer
    x = 33,031.61

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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.