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Finding the Fourth Proportional to 66,138.92, 91,227.30 and 41,000.84

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Solution

The fourth proportional to 66,138.92, 91,227.30 and 41,000.84 is: 56,553.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,138.92 : 91,227.30 = 41,000.84 : x
  2. Step 2: Convert to fraction form
    66,138.92/91,227.30 = 41,000.84/x
  3. Step 3: Cross multiply
    66,138.92x = 91,227.30 × 41,000.84
  4. Step 4: Simplify right side
    66,138.92x = 3,740,395,930.93
  5. Step 5: Solve for x
    x = 3,740,395,930.93/66,138.92
  6. Step 6: Final answer
    x = 56,553.63

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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.