Home / 54,160.20-74,736-30,286.08

Finding the Fourth Proportional to 54,160.20, 74,736 and 30,286.08

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Solution

The fourth proportional to 54,160.20, 74,736 and 30,286.08 is: 41,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,160.20 : 74,736 = 30,286.08 : x
  2. Step 2: Convert to fraction form
    54,160.20/74,736 = 30,286.08/x
  3. Step 3: Cross multiply
    54,160.20x = 74,736 × 30,286.08
  4. Step 4: Simplify right side
    54,160.20x = 2,263,460,474.88
  5. Step 5: Solve for x
    x = 2,263,460,474.88/54,160.20
  6. Step 6: Final answer
    x = 41,791.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.