Home / 54,255.66-74,866.07-30,378.48

Finding the Fourth Proportional to 54,255.66, 74,866.07 and 30,378.48

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Solution

The fourth proportional to 54,255.66, 74,866.07 and 30,378.48 is: 41,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,255.66 : 74,866.07 = 30,378.48 : x
  2. Step 2: Convert to fraction form
    54,255.66/74,866.07 = 30,378.48/x
  3. Step 3: Cross multiply
    54,255.66x = 74,866.07 × 30,378.48
  4. Step 4: Simplify right side
    54,255.66x = 2,274,317,258.28
  5. Step 5: Solve for x
    x = 2,274,317,258.28/54,255.66
  6. Step 6: Final answer
    x = 41,918.53

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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.