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Finding the Fourth Proportional to 84,122.82, 126,136.95 and 27,932.85

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Solution

The fourth proportional to 84,122.82, 126,136.95 and 27,932.85 is: 41,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,122.82 : 126,136.95 = 27,932.85 : x
  2. Step 2: Convert to fraction form
    84,122.82/126,136.95 = 27,932.85/x
  3. Step 3: Cross multiply
    84,122.82x = 126,136.95 × 27,932.85
  4. Step 4: Simplify right side
    84,122.82x = 3,523,364,399.06
  5. Step 5: Solve for x
    x = 3,523,364,399.06/84,122.82
  6. Step 6: Final answer
    x = 41,883.57

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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.