Home / 76,310.18-114,470.76-20,149.73

Finding the Fourth Proportional to 76,310.18, 114,470.76 and 20,149.73

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Solution

The fourth proportional to 76,310.18, 114,470.76 and 20,149.73 is: 30,226.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,310.18 : 114,470.76 = 20,149.73 : x
  2. Step 2: Convert to fraction form
    76,310.18/114,470.76 = 20,149.73/x
  3. Step 3: Cross multiply
    76,310.18x = 114,470.76 × 20,149.73
  4. Step 4: Simplify right side
    76,310.18x = 2,306,554,906.89
  5. Step 5: Solve for x
    x = 2,306,554,906.89/76,310.18
  6. Step 6: Final answer
    x = 30,226.04

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1.5x scale

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.