Home / 54,409.13-81,629.49-19,351.52

Finding the Fourth Proportional to 54,409.13, 81,629.49 and 19,351.52

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Solution

The fourth proportional to 54,409.13, 81,629.49 and 19,351.52 is: 29,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,409.13 : 81,629.49 = 19,351.52 : x
  2. Step 2: Convert to fraction form
    54,409.13/81,629.49 = 19,351.52/x
  3. Step 3: Cross multiply
    54,409.13x = 81,629.49 × 19,351.52
  4. Step 4: Simplify right side
    54,409.13x = 1,579,654,708.32
  5. Step 5: Solve for x
    x = 1,579,654,708.32/54,409.13
  6. Step 6: Final answer
    x = 29,032.90

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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.