Home / 49,879.92-74,819.72-20,290.74

Finding the Fourth Proportional to 49,879.92, 74,819.72 and 20,290.74

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Solution

The fourth proportional to 49,879.92, 74,819.72 and 20,290.74 is: 30,436.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,879.92 : 74,819.72 = 20,290.74 : x
  2. Step 2: Convert to fraction form
    49,879.92/74,819.72 = 20,290.74/x
  3. Step 3: Cross multiply
    49,879.92x = 74,819.72 × 20,290.74
  4. Step 4: Simplify right side
    49,879.92x = 1,518,147,485.39
  5. Step 5: Solve for x
    x = 1,518,147,485.39/49,879.92
  6. Step 6: Final answer
    x = 30,436.04

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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.