Home / 54,290.20-81,608.10-51,179.80

Finding the Fourth Proportional to 54,290.20, 81,608.10 and 51,179.80

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Solution

The fourth proportional to 54,290.20, 81,608.10 and 51,179.80 is: 76,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,290.20 : 81,608.10 = 51,179.80 : x
  2. Step 2: Convert to fraction form
    54,290.20/81,608.10 = 51,179.80/x
  3. Step 3: Cross multiply
    54,290.20x = 81,608.10 × 51,179.80
  4. Step 4: Simplify right side
    54,290.20x = 4,176,686,236.38
  5. Step 5: Solve for x
    x = 4,176,686,236.38/54,290.20
  6. Step 6: Final answer
    x = 76,932.60

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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.