Home / 66,591.25-91,777.08-50,419.82

Finding the Fourth Proportional to 66,591.25, 91,777.08 and 50,419.82

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Solution

The fourth proportional to 66,591.25, 91,777.08 and 50,419.82 is: 69,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.25 : 91,777.08 = 50,419.82 : x
  2. Step 2: Convert to fraction form
    66,591.25/91,777.08 = 50,419.82/x
  3. Step 3: Cross multiply
    66,591.25x = 91,777.08 × 50,419.82
  4. Step 4: Simplify right side
    66,591.25x = 4,627,383,911.36
  5. Step 5: Solve for x
    x = 4,627,383,911.36/66,591.25
  6. Step 6: Final answer
    x = 69,489.37

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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.