Home / 54,245.49-74,855.71-30,371.75

Finding the Fourth Proportional to 54,245.49, 74,855.71 and 30,371.75

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Solution

The fourth proportional to 54,245.49, 74,855.71 and 30,371.75 is: 41,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,245.49 : 74,855.71 = 30,371.75 : x
  2. Step 2: Convert to fraction form
    54,245.49/74,855.71 = 30,371.75/x
  3. Step 3: Cross multiply
    54,245.49x = 74,855.71 × 30,371.75
  4. Step 4: Simplify right side
    54,245.49x = 2,273,498,910.19
  5. Step 5: Solve for x
    x = 2,273,498,910.19/54,245.49
  6. Step 6: Final answer
    x = 41,911.30

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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.