Home / 54,991.38-82,339.45-28,640.77

Finding the Fourth Proportional to 54,991.38, 82,339.45 and 28,640.77

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Solution

The fourth proportional to 54,991.38, 82,339.45 and 28,640.77 is: 42,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,991.38 : 82,339.45 = 28,640.77 : x
  2. Step 2: Convert to fraction form
    54,991.38/82,339.45 = 28,640.77/x
  3. Step 3: Cross multiply
    54,991.38x = 82,339.45 × 28,640.77
  4. Step 4: Simplify right side
    54,991.38x = 2,358,265,249.38
  5. Step 5: Solve for x
    x = 2,358,265,249.38/54,991.38
  6. Step 6: Final answer
    x = 42,884.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.