Home / 54,863.46-75,713.13-30,991.14

Finding the Fourth Proportional to 54,863.46, 75,713.13 and 30,991.14

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Solution

The fourth proportional to 54,863.46, 75,713.13 and 30,991.14 is: 42,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,863.46 : 75,713.13 = 30,991.14 : x
  2. Step 2: Convert to fraction form
    54,863.46/75,713.13 = 30,991.14/x
  3. Step 3: Cross multiply
    54,863.46x = 75,713.13 × 30,991.14
  4. Step 4: Simplify right side
    54,863.46x = 2,346,436,211.67
  5. Step 5: Solve for x
    x = 2,346,436,211.67/54,863.46
  6. Step 6: Final answer
    x = 42,768.65

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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.