Home / 91,043.68-125,640.78-50,759.96

Finding the Fourth Proportional to 91,043.68, 125,640.78 and 50,759.96

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Solution

The fourth proportional to 91,043.68, 125,640.78 and 50,759.96 is: 70,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,043.68 : 125,640.78 = 50,759.96 : x
  2. Step 2: Convert to fraction form
    91,043.68/125,640.78 = 50,759.96/x
  3. Step 3: Cross multiply
    91,043.68x = 125,640.78 × 50,759.96
  4. Step 4: Simplify right side
    91,043.68x = 6,377,520,967.17
  5. Step 5: Solve for x
    x = 6,377,520,967.17/91,043.68
  6. Step 6: Final answer
    x = 70,049.02

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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.