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Finding the Fourth Proportional to 81,998.19, 122,997.29 and 22,835.39

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Solution

The fourth proportional to 81,998.19, 122,997.29 and 22,835.39 is: 34,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,998.19 : 122,997.29 = 22,835.39 : x
  2. Step 2: Convert to fraction form
    81,998.19/122,997.29 = 22,835.39/x
  3. Step 3: Cross multiply
    81,998.19x = 122,997.29 × 22,835.39
  4. Step 4: Simplify right side
    81,998.19x = 2,808,690,356.93
  5. Step 5: Solve for x
    x = 2,808,690,356.93/81,998.19
  6. Step 6: Final answer
    x = 34,253.08

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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.