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Finding the Fourth Proportional to 81,486.92, 122,230.50 and 22,323.12

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Solution

The fourth proportional to 81,486.92, 122,230.50 and 22,323.12 is: 33,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,486.92 : 122,230.50 = 22,323.12 : x
  2. Step 2: Convert to fraction form
    81,486.92/122,230.50 = 22,323.12/x
  3. Step 3: Cross multiply
    81,486.92x = 122,230.50 × 22,323.12
  4. Step 4: Simplify right side
    81,486.92x = 2,728,566,119.16
  5. Step 5: Solve for x
    x = 2,728,566,119.16/81,486.92
  6. Step 6: Final answer
    x = 33,484.71

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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.