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Finding the Fourth Proportional to 54,393.86, 81,590.79 and 16,956.96

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Solution

The fourth proportional to 54,393.86, 81,590.79 and 16,956.96 is: 25,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,393.86 : 81,590.79 = 16,956.96 : x
  2. Step 2: Convert to fraction form
    54,393.86/81,590.79 = 16,956.96/x
  3. Step 3: Cross multiply
    54,393.86x = 81,590.79 × 16,956.96
  4. Step 4: Simplify right side
    54,393.86x = 1,383,531,520.02
  5. Step 5: Solve for x
    x = 1,383,531,520.02/54,393.86
  6. Step 6: Final answer
    x = 25,435.43

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1.5x scale

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.