Home / 51,879.20-71,590.38-30,660.44

Finding the Fourth Proportional to 51,879.20, 71,590.38 and 30,660.44

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Solution

The fourth proportional to 51,879.20, 71,590.38 and 30,660.44 is: 42,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,879.20 : 71,590.38 = 30,660.44 : x
  2. Step 2: Convert to fraction form
    51,879.20/71,590.38 = 30,660.44/x
  3. Step 3: Cross multiply
    51,879.20x = 71,590.38 × 30,660.44
  4. Step 4: Simplify right side
    51,879.20x = 2,194,992,550.57
  5. Step 5: Solve for x
    x = 2,194,992,550.57/51,879.20
  6. Step 6: Final answer
    x = 42,309.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.