Home / 54,917.68-82,386.24-20,722.72

Finding the Fourth Proportional to 54,917.68, 82,386.24 and 20,722.72

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Solution

The fourth proportional to 54,917.68, 82,386.24 and 20,722.72 is: 31,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,917.68 : 82,386.24 = 20,722.72 : x
  2. Step 2: Convert to fraction form
    54,917.68/82,386.24 = 20,722.72/x
  3. Step 3: Cross multiply
    54,917.68x = 82,386.24 × 20,722.72
  4. Step 4: Simplify right side
    54,917.68x = 1,707,266,879.76
  5. Step 5: Solve for x
    x = 1,707,266,879.76/54,917.68
  6. Step 6: Final answer
    x = 31,087.75

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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.