Home / 48,858.72-73,273.41-20,778.54

Finding the Fourth Proportional to 48,858.72, 73,273.41 and 20,778.54

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Solution

The fourth proportional to 48,858.72, 73,273.41 and 20,778.54 is: 31,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,858.72 : 73,273.41 = 20,778.54 : x
  2. Step 2: Convert to fraction form
    48,858.72/73,273.41 = 20,778.54/x
  3. Step 3: Cross multiply
    48,858.72x = 73,273.41 × 20,778.54
  4. Step 4: Simplify right side
    48,858.72x = 1,522,514,480.62
  5. Step 5: Solve for x
    x = 1,522,514,480.62/48,858.72
  6. Step 6: Final answer
    x = 31,161.57

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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.