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Finding the Fourth Proportional to 81,853.39, 122,767.93 and 22,682.89

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Solution

The fourth proportional to 81,853.39, 122,767.93 and 22,682.89 is: 34,020.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,853.39 : 122,767.93 = 22,682.89 : x
  2. Step 2: Convert to fraction form
    81,853.39/122,767.93 = 22,682.89/x
  3. Step 3: Cross multiply
    81,853.39x = 122,767.93 × 22,682.89
  4. Step 4: Simplify right side
    81,853.39x = 2,784,730,724.46
  5. Step 5: Solve for x
    x = 2,784,730,724.46/81,853.39
  6. Step 6: Final answer
    x = 34,020.96

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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.