Home / 54,036.56-74,578.28-38,979.12

Finding the Fourth Proportional to 54,036.56, 74,578.28 and 38,979.12

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Solution

The fourth proportional to 54,036.56, 74,578.28 and 38,979.12 is: 53,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,036.56 : 74,578.28 = 38,979.12 : x
  2. Step 2: Convert to fraction form
    54,036.56/74,578.28 = 38,979.12/x
  3. Step 3: Cross multiply
    54,036.56x = 74,578.28 × 38,979.12
  4. Step 4: Simplify right side
    54,036.56x = 2,906,995,725.51
  5. Step 5: Solve for x
    x = 2,906,995,725.51/54,036.56
  6. Step 6: Final answer
    x = 53,796.83

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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.