Home / 54,042.56-81,071.96-18,976.04

Finding the Fourth Proportional to 54,042.56, 81,071.96 and 18,976.04

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Solution

The fourth proportional to 54,042.56, 81,071.96 and 18,976.04 is: 28,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,042.56 : 81,071.96 = 18,976.04 : x
  2. Step 2: Convert to fraction form
    54,042.56/81,071.96 = 18,976.04/x
  3. Step 3: Cross multiply
    54,042.56x = 81,071.96 × 18,976.04
  4. Step 4: Simplify right side
    54,042.56x = 1,538,424,755.84
  5. Step 5: Solve for x
    x = 1,538,424,755.84/54,042.56
  6. Step 6: Final answer
    x = 28,466.91

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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.