Home / 54,508.01-81,746.21-21,220.65

Finding the Fourth Proportional to 54,508.01, 81,746.21 and 21,220.65

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Solution

The fourth proportional to 54,508.01, 81,746.21 and 21,220.65 is: 31,824.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,508.01 : 81,746.21 = 21,220.65 : x
  2. Step 2: Convert to fraction form
    54,508.01/81,746.21 = 21,220.65/x
  3. Step 3: Cross multiply
    54,508.01x = 81,746.21 × 21,220.65
  4. Step 4: Simplify right side
    54,508.01x = 1,734,707,764.29
  5. Step 5: Solve for x
    x = 1,734,707,764.29/54,508.01
  6. Step 6: Final answer
    x = 31,824.83

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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.