Home / 48,578.20-72,879.42-38,620.60

Finding the Fourth Proportional to 48,578.20, 72,879.42 and 38,620.60

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Solution

The fourth proportional to 48,578.20, 72,879.42 and 38,620.60 is: 57,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,578.20 : 72,879.42 = 38,620.60 : x
  2. Step 2: Convert to fraction form
    48,578.20/72,879.42 = 38,620.60/x
  3. Step 3: Cross multiply
    48,578.20x = 72,879.42 × 38,620.60
  4. Step 4: Simplify right side
    48,578.20x = 2,814,646,928.05
  5. Step 5: Solve for x
    x = 2,814,646,928.05/48,578.20
  6. Step 6: Final answer
    x = 57,940.54

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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.