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Finding the Fourth Proportional to 71,344.90, 107,018.39 and 33,908.79

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Solution

The fourth proportional to 71,344.90, 107,018.39 and 33,908.79 is: 50,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,344.90 : 107,018.39 = 33,908.79 : x
  2. Step 2: Convert to fraction form
    71,344.90/107,018.39 = 33,908.79/x
  3. Step 3: Cross multiply
    71,344.90x = 107,018.39 × 33,908.79
  4. Step 4: Simplify right side
    71,344.90x = 3,628,864,112.65
  5. Step 5: Solve for x
    x = 3,628,864,112.65/71,344.90
  6. Step 6: Final answer
    x = 50,863.68

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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.