Home / 54,581.91-75,322.74-30,708.75

Finding the Fourth Proportional to 54,581.91, 75,322.74 and 30,708.75

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Solution

The fourth proportional to 54,581.91, 75,322.74 and 30,708.75 is: 42,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,581.91 : 75,322.74 = 30,708.75 : x
  2. Step 2: Convert to fraction form
    54,581.91/75,322.74 = 30,708.75/x
  3. Step 3: Cross multiply
    54,581.91x = 75,322.74 × 30,708.75
  4. Step 4: Simplify right side
    54,581.91x = 2,313,067,191.98
  5. Step 5: Solve for x
    x = 2,313,067,191.98/54,581.91
  6. Step 6: Final answer
    x = 42,377.91

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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.