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Finding the Fourth Proportional to 81,884.30, 122,812.71 and 22,725.98

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Solution

The fourth proportional to 81,884.30, 122,812.71 and 22,725.98 is: 34,085.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,884.30 : 122,812.71 = 22,725.98 : x
  2. Step 2: Convert to fraction form
    81,884.30/122,812.71 = 22,725.98/x
  3. Step 3: Cross multiply
    81,884.30x = 122,812.71 × 22,725.98
  4. Step 4: Simplify right side
    81,884.30x = 2,791,039,191.21
  5. Step 5: Solve for x
    x = 2,791,039,191.21/81,884.30
  6. Step 6: Final answer
    x = 34,085.16

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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.