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Finding the Fourth Proportional to 77,744.74, 107,286.54 and 43,750.57

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Solution

The fourth proportional to 77,744.74, 107,286.54 and 43,750.57 is: 60,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,744.74 : 107,286.54 = 43,750.57 : x
  2. Step 2: Convert to fraction form
    77,744.74/107,286.54 = 43,750.57/x
  3. Step 3: Cross multiply
    77,744.74x = 107,286.54 × 43,750.57
  4. Step 4: Simplify right side
    77,744.74x = 4,693,847,278.33
  5. Step 5: Solve for x
    x = 4,693,847,278.33/77,744.74
  6. Step 6: Final answer
    x = 60,375.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.