Home / 54,981.38-82,884.06-51,319.50

Finding the Fourth Proportional to 54,981.38, 82,884.06 and 51,319.50

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Solution

The fourth proportional to 54,981.38, 82,884.06 and 51,319.50 is: 77,363.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,981.38 : 82,884.06 = 51,319.50 : x
  2. Step 2: Convert to fraction form
    54,981.38/82,884.06 = 51,319.50/x
  3. Step 3: Cross multiply
    54,981.38x = 82,884.06 × 51,319.50
  4. Step 4: Simplify right side
    54,981.38x = 4,253,568,517.17
  5. Step 5: Solve for x
    x = 4,253,568,517.17/54,981.38
  6. Step 6: Final answer
    x = 77,363.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.