Home / 54,255.69-81,395.96-20,976.03

Finding the Fourth Proportional to 54,255.69, 81,395.96 and 20,976.03

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Solution

The fourth proportional to 54,255.69, 81,395.96 and 20,976.03 is: 31,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,255.69 : 81,395.96 = 20,976.03 : x
  2. Step 2: Convert to fraction form
    54,255.69/81,395.96 = 20,976.03/x
  3. Step 3: Cross multiply
    54,255.69x = 81,395.96 × 20,976.03
  4. Step 4: Simplify right side
    54,255.69x = 1,707,363,993.96
  5. Step 5: Solve for x
    x = 1,707,363,993.96/54,255.69
  6. Step 6: Final answer
    x = 31,468.85

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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.