Home / 55,105.38-82,645.65-15,661.62

Finding the Fourth Proportional to 55,105.38, 82,645.65 and 15,661.62

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Solution

The fourth proportional to 55,105.38, 82,645.65 and 15,661.62 is: 23,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,105.38 : 82,645.65 = 15,661.62 : x
  2. Step 2: Convert to fraction form
    55,105.38/82,645.65 = 15,661.62/x
  3. Step 3: Cross multiply
    55,105.38x = 82,645.65 × 15,661.62
  4. Step 4: Simplify right side
    55,105.38x = 1,294,364,764.95
  5. Step 5: Solve for x
    x = 1,294,364,764.95/55,105.38
  6. Step 6: Final answer
    x = 23,488.90

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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.