Home / 73,133.38-109,704.32-20,546.97

Finding the Fourth Proportional to 73,133.38, 109,704.32 and 20,546.97

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Solution

The fourth proportional to 73,133.38, 109,704.32 and 20,546.97 is: 30,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,133.38 : 109,704.32 = 20,546.97 : x
  2. Step 2: Convert to fraction form
    73,133.38/109,704.32 = 20,546.97/x
  3. Step 3: Cross multiply
    73,133.38x = 109,704.32 × 20,546.97
  4. Step 4: Simplify right side
    73,133.38x = 2,254,091,371.91
  5. Step 5: Solve for x
    x = 2,254,091,371.91/73,133.38
  6. Step 6: Final answer
    x = 30,821.65

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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.