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Finding the Fourth Proportional to 83,843.65, 125,735.04 and 45,921.09

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Solution

The fourth proportional to 83,843.65, 125,735.04 and 45,921.09 is: 68,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,843.65 : 125,735.04 = 45,921.09 : x
  2. Step 2: Convert to fraction form
    83,843.65/125,735.04 = 45,921.09/x
  3. Step 3: Cross multiply
    83,843.65x = 125,735.04 × 45,921.09
  4. Step 4: Simplify right side
    83,843.65x = 5,773,890,087.99
  5. Step 5: Solve for x
    x = 5,773,890,087.99/83,843.65
  6. Step 6: Final answer
    x = 68,864.97

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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.