Home / 54,920.09-75,791.52-30,391.19

Finding the Fourth Proportional to 54,920.09, 75,791.52 and 30,391.19

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Solution

The fourth proportional to 54,920.09, 75,791.52 and 30,391.19 is: 41,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,920.09 : 75,791.52 = 30,391.19 : x
  2. Step 2: Convert to fraction form
    54,920.09/75,791.52 = 30,391.19/x
  3. Step 3: Cross multiply
    54,920.09x = 75,791.52 × 30,391.19
  4. Step 4: Simplify right side
    54,920.09x = 2,303,394,389.97
  5. Step 5: Solve for x
    x = 2,303,394,389.97/54,920.09
  6. Step 6: Final answer
    x = 41,940.83

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1.5x scale

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.