Home / 92,391.31-138,638.94-50,274.46

Finding the Fourth Proportional to 92,391.31, 138,638.94 and 50,274.46

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Solution

The fourth proportional to 92,391.31, 138,638.94 and 50,274.46 is: 75,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,391.31 : 138,638.94 = 50,274.46 : x
  2. Step 2: Convert to fraction form
    92,391.31/138,638.94 = 50,274.46/x
  3. Step 3: Cross multiply
    92,391.31x = 138,638.94 × 50,274.46
  4. Step 4: Simplify right side
    92,391.31x = 6,969,997,843.47
  5. Step 5: Solve for x
    x = 6,969,997,843.47/92,391.31
  6. Step 6: Final answer
    x = 75,439.97

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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.