Home / 54,480.22-81,699.24-21,195.82

Finding the Fourth Proportional to 54,480.22, 81,699.24 and 21,195.82

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Solution

The fourth proportional to 54,480.22, 81,699.24 and 21,195.82 is: 31,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,480.22 : 81,699.24 = 21,195.82 : x
  2. Step 2: Convert to fraction form
    54,480.22/81,699.24 = 21,195.82/x
  3. Step 3: Cross multiply
    54,480.22x = 81,699.24 × 21,195.82
  4. Step 4: Simplify right side
    54,480.22x = 1,731,682,385.18
  5. Step 5: Solve for x
    x = 1,731,682,385.18/54,480.22
  6. Step 6: Final answer
    x = 31,785.52

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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.