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Finding the Fourth Proportional to 53,874.88, 80,813.60 and 18,336.08

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Solution

The fourth proportional to 53,874.88, 80,813.60 and 18,336.08 is: 27,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,874.88 : 80,813.60 = 18,336.08 : x
  2. Step 2: Convert to fraction form
    53,874.88/80,813.60 = 18,336.08/x
  3. Step 3: Cross multiply
    53,874.88x = 80,813.60 × 18,336.08
  4. Step 4: Simplify right side
    53,874.88x = 1,481,804,634.69
  5. Step 5: Solve for x
    x = 1,481,804,634.69/53,874.88
  6. Step 6: Final answer
    x = 27,504.56

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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.