Home / 54,128.07-74,698.08-30,258.72

Finding the Fourth Proportional to 54,128.07, 74,698.08 and 30,258.72

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Solution

The fourth proportional to 54,128.07, 74,698.08 and 30,258.72 is: 41,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128.07 : 74,698.08 = 30,258.72 : x
  2. Step 2: Convert to fraction form
    54,128.07/74,698.08 = 30,258.72/x
  3. Step 3: Cross multiply
    54,128.07x = 74,698.08 × 30,258.72
  4. Step 4: Simplify right side
    54,128.07x = 2,260,268,287.26
  5. Step 5: Solve for x
    x = 2,260,268,287.26/54,128.07
  6. Step 6: Final answer
    x = 41,757.78

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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.