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Finding the Fourth Proportional to 53,799, 80,711.46 and 16,863

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Solution

The fourth proportional to 53,799, 80,711.46 and 16,863 is: 25,298.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,799 : 80,711.46 = 16,863 : x
  2. Step 2: Convert to fraction form
    53,799/80,711.46 = 16,863/x
  3. Step 3: Cross multiply
    53,799x = 80,711.46 × 16,863
  4. Step 4: Simplify right side
    53,799x = 1,361,037,349.98
  5. Step 5: Solve for x
    x = 1,361,037,349.98/53,799
  6. Step 6: Final answer
    x = 25,298.56

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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.