Home / 54,975.12-82,470.78-19,906.58

Finding the Fourth Proportional to 54,975.12, 82,470.78 and 19,906.58

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Solution

The fourth proportional to 54,975.12, 82,470.78 and 19,906.58 is: 29,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,975.12 : 82,470.78 = 19,906.58 : x
  2. Step 2: Convert to fraction form
    54,975.12/82,470.78 = 19,906.58/x
  3. Step 3: Cross multiply
    54,975.12x = 82,470.78 × 19,906.58
  4. Step 4: Simplify right side
    54,975.12x = 1,641,711,179.73
  5. Step 5: Solve for x
    x = 1,641,711,179.73/54,975.12
  6. Step 6: Final answer
    x = 29,862.80

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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.