Home / 54,433.43-81,629.08-21,149.11

Finding the Fourth Proportional to 54,433.43, 81,629.08 and 21,149.11

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Solution

The fourth proportional to 54,433.43, 81,629.08 and 21,149.11 is: 31,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,433.43 : 81,629.08 = 21,149.11 : x
  2. Step 2: Convert to fraction form
    54,433.43/81,629.08 = 21,149.11/x
  3. Step 3: Cross multiply
    54,433.43x = 81,629.08 × 21,149.11
  4. Step 4: Simplify right side
    54,433.43x = 1,726,382,135.17
  5. Step 5: Solve for x
    x = 1,726,382,135.17/54,433.43
  6. Step 6: Final answer
    x = 31,715.48

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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.