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Finding the Fourth Proportional to 53,854, 80,794.12 and 16,918

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Solution

The fourth proportional to 53,854, 80,794.12 and 16,918 is: 25,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,854 : 80,794.12 = 16,918 : x
  2. Step 2: Convert to fraction form
    53,854/80,794.12 = 16,918/x
  3. Step 3: Cross multiply
    53,854x = 80,794.12 × 16,918
  4. Step 4: Simplify right side
    53,854x = 1,366,874,922.16
  5. Step 5: Solve for x
    x = 1,366,874,922.16/53,854
  6. Step 6: Final answer
    x = 25,381.12

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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.