Home / 54,853.10-75,694.60-30,983.21

Finding the Fourth Proportional to 54,853.10, 75,694.60 and 30,983.21

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Solution

The fourth proportional to 54,853.10, 75,694.60 and 30,983.21 is: 42,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,853.10 : 75,694.60 = 30,983.21 : x
  2. Step 2: Convert to fraction form
    54,853.10/75,694.60 = 30,983.21/x
  3. Step 3: Cross multiply
    54,853.10x = 75,694.60 × 30,983.21
  4. Step 4: Simplify right side
    54,853.10x = 2,345,261,631.78
  5. Step 5: Solve for x
    x = 2,345,261,631.78/54,853.10
  6. Step 6: Final answer
    x = 42,755.32

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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.