Home / 54,286.94-74,919.06-30,421.31

Finding the Fourth Proportional to 54,286.94, 74,919.06 and 30,421.31

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Solution

The fourth proportional to 54,286.94, 74,919.06 and 30,421.31 is: 41,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,286.94 : 74,919.06 = 30,421.31 : x
  2. Step 2: Convert to fraction form
    54,286.94/74,919.06 = 30,421.31/x
  3. Step 3: Cross multiply
    54,286.94x = 74,919.06 × 30,421.31
  4. Step 4: Simplify right side
    54,286.94x = 2,279,135,574.57
  5. Step 5: Solve for x
    x = 2,279,135,574.57/54,286.94
  6. Step 6: Final answer
    x = 41,983.13

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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.