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Finding the Fourth Proportional to 68,801.40, 94,951.44 and 40,512.60

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Solution

The fourth proportional to 68,801.40, 94,951.44 and 40,512.60 is: 55,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,801.40 : 94,951.44 = 40,512.60 : x
  2. Step 2: Convert to fraction form
    68,801.40/94,951.44 = 40,512.60/x
  3. Step 3: Cross multiply
    68,801.40x = 94,951.44 × 40,512.60
  4. Step 4: Simplify right side
    68,801.40x = 3,846,729,708.14
  5. Step 5: Solve for x
    x = 3,846,729,708.14/68,801.40
  6. Step 6: Final answer
    x = 55,910.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.