Home / 54,078.09-74,620.35-30,201.72

Finding the Fourth Proportional to 54,078.09, 74,620.35 and 30,201.72

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Solution

The fourth proportional to 54,078.09, 74,620.35 and 30,201.72 is: 41,674.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.09 : 74,620.35 = 30,201.72 : x
  2. Step 2: Convert to fraction form
    54,078.09/74,620.35 = 30,201.72/x
  3. Step 3: Cross multiply
    54,078.09x = 74,620.35 × 30,201.72
  4. Step 4: Simplify right side
    54,078.09x = 2,253,662,917.00
  5. Step 5: Solve for x
    x = 2,253,662,917.00/54,078.09
  6. Step 6: Final answer
    x = 41,674.23

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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.