Home / 71,922.11-107,939.66-49,890.51

Finding the Fourth Proportional to 71,922.11, 107,939.66 and 49,890.51

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Solution

The fourth proportional to 71,922.11, 107,939.66 and 49,890.51 is: 74,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,922.11 : 107,939.66 = 49,890.51 : x
  2. Step 2: Convert to fraction form
    71,922.11/107,939.66 = 49,890.51/x
  3. Step 3: Cross multiply
    71,922.11x = 107,939.66 × 49,890.51
  4. Step 4: Simplify right side
    71,922.11x = 5,385,164,437.17
  5. Step 5: Solve for x
    x = 5,385,164,437.17/71,922.11
  6. Step 6: Final answer
    x = 74,874.96

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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.