Home / 47,778.98-71,640.66-18,198.86

Finding the Fourth Proportional to 47,778.98, 71,640.66 and 18,198.86

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Solution

The fourth proportional to 47,778.98, 71,640.66 and 18,198.86 is: 27,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,778.98 : 71,640.66 = 18,198.86 : x
  2. Step 2: Convert to fraction form
    47,778.98/71,640.66 = 18,198.86/x
  3. Step 3: Cross multiply
    47,778.98x = 71,640.66 × 18,198.86
  4. Step 4: Simplify right side
    47,778.98x = 1,303,778,341.65
  5. Step 5: Solve for x
    x = 1,303,778,341.65/47,778.98
  6. Step 6: Final answer
    x = 27,287.70

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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.