Home / 54,161.69-81,255.83-18,623.54

Finding the Fourth Proportional to 54,161.69, 81,255.83 and 18,623.54

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Solution

The fourth proportional to 54,161.69, 81,255.83 and 18,623.54 is: 27,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,161.69 : 81,255.83 = 18,623.54 : x
  2. Step 2: Convert to fraction form
    54,161.69/81,255.83 = 18,623.54/x
  3. Step 3: Cross multiply
    54,161.69x = 81,255.83 × 18,623.54
  4. Step 4: Simplify right side
    54,161.69x = 1,513,271,310.26
  5. Step 5: Solve for x
    x = 1,513,271,310.26/54,161.69
  6. Step 6: Final answer
    x = 27,939.89

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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.