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Finding the Fourth Proportional to 84,017.84, 126,046.35 and 27,853.83

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Solution

The fourth proportional to 84,017.84, 126,046.35 and 27,853.83 is: 41,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017.84 : 126,046.35 = 27,853.83 : x
  2. Step 2: Convert to fraction form
    84,017.84/126,046.35 = 27,853.83/x
  3. Step 3: Cross multiply
    84,017.84x = 126,046.35 × 27,853.83
  4. Step 4: Simplify right side
    84,017.84x = 3,510,873,605.02
  5. Step 5: Solve for x
    x = 3,510,873,605.02/84,017.84
  6. Step 6: Final answer
    x = 41,787.24

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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.