Home / 54,333-74,979.81-31,687.70

Finding the Fourth Proportional to 54,333, 74,979.81 and 31,687.70

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Solution

The fourth proportional to 54,333, 74,979.81 and 31,687.70 is: 43,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,333 : 74,979.81 = 31,687.70 : x
  2. Step 2: Convert to fraction form
    54,333/74,979.81 = 31,687.70/x
  3. Step 3: Cross multiply
    54,333x = 74,979.81 × 31,687.70
  4. Step 4: Simplify right side
    54,333x = 2,375,937,350.44
  5. Step 5: Solve for x
    x = 2,375,937,350.44/54,333
  6. Step 6: Final answer
    x = 43,729.18

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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.