Home / 49,286.80-73,930.20-18,115.60

Finding the Fourth Proportional to 49,286.80, 73,930.20 and 18,115.60

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Solution

The fourth proportional to 49,286.80, 73,930.20 and 18,115.60 is: 27,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,286.80 : 73,930.20 = 18,115.60 : x
  2. Step 2: Convert to fraction form
    49,286.80/73,930.20 = 18,115.60/x
  3. Step 3: Cross multiply
    49,286.80x = 73,930.20 × 18,115.60
  4. Step 4: Simplify right side
    49,286.80x = 1,339,289,931.12
  5. Step 5: Solve for x
    x = 1,339,289,931.12/49,286.80
  6. Step 6: Final answer
    x = 27,173.40

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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.