Home / 54,516.73-81,786.09-19,455.48

Finding the Fourth Proportional to 54,516.73, 81,786.09 and 19,455.48

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Solution

The fourth proportional to 54,516.73, 81,786.09 and 19,455.48 is: 29,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,516.73 : 81,786.09 = 19,455.48 : x
  2. Step 2: Convert to fraction form
    54,516.73/81,786.09 = 19,455.48/x
  3. Step 3: Cross multiply
    54,516.73x = 81,786.09 × 19,455.48
  4. Step 4: Simplify right side
    54,516.73x = 1,591,187,638.27
  5. Step 5: Solve for x
    x = 1,591,187,638.27/54,516.73
  6. Step 6: Final answer
    x = 29,187.14

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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.