Home / 54,537.30-81,772.44-21,218.56

Finding the Fourth Proportional to 54,537.30, 81,772.44 and 21,218.56

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Solution

The fourth proportional to 54,537.30, 81,772.44 and 21,218.56 is: 31,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,537.30 : 81,772.44 = 21,218.56 : x
  2. Step 2: Convert to fraction form
    54,537.30/81,772.44 = 21,218.56/x
  3. Step 3: Cross multiply
    54,537.30x = 81,772.44 × 21,218.56
  4. Step 4: Simplify right side
    54,537.30x = 1,735,093,140.49
  5. Step 5: Solve for x
    x = 1,735,093,140.49/54,537.30
  6. Step 6: Final answer
    x = 31,814.80

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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.