Home / 54,260.47-81,394.61-18,721.27

Finding the Fourth Proportional to 54,260.47, 81,394.61 and 18,721.27

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Solution

The fourth proportional to 54,260.47, 81,394.61 and 18,721.27 is: 28,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,260.47 : 81,394.61 = 18,721.27 : x
  2. Step 2: Convert to fraction form
    54,260.47/81,394.61 = 18,721.27/x
  3. Step 3: Cross multiply
    54,260.47x = 81,394.61 × 18,721.27
  4. Step 4: Simplify right side
    54,260.47x = 1,523,810,470.35
  5. Step 5: Solve for x
    x = 1,523,810,470.35/54,260.47
  6. Step 6: Final answer
    x = 28,083.25

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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.