Home / 81,824.16-122,743.20-22,659.84

Finding the Fourth Proportional to 81,824.16, 122,743.20 and 22,659.84

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Solution

The fourth proportional to 81,824.16, 122,743.20 and 22,659.84 is: 33,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,824.16 : 122,743.20 = 22,659.84 : x
  2. Step 2: Convert to fraction form
    81,824.16/122,743.20 = 22,659.84/x
  3. Step 3: Cross multiply
    81,824.16x = 122,743.20 × 22,659.84
  4. Step 4: Simplify right side
    81,824.16x = 2,781,341,273.09
  5. Step 5: Solve for x
    x = 2,781,341,273.09/81,824.16
  6. Step 6: Final answer
    x = 33,991.69

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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.