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Finding the Fourth Proportional to 49,286.40, 73,958.40 and 18,124.80

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Solution

The fourth proportional to 49,286.40, 73,958.40 and 18,124.80 is: 27,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,286.40 : 73,958.40 = 18,124.80 : x
  2. Step 2: Convert to fraction form
    49,286.40/73,958.40 = 18,124.80/x
  3. Step 3: Cross multiply
    49,286.40x = 73,958.40 × 18,124.80
  4. Step 4: Simplify right side
    49,286.40x = 1,340,481,208.32
  5. Step 5: Solve for x
    x = 1,340,481,208.32/49,286.40
  6. Step 6: Final answer
    x = 27,197.79

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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.