Home / 91,431.88-126,201.36-53,198.81

Finding the Fourth Proportional to 91,431.88, 126,201.36 and 53,198.81

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Solution

The fourth proportional to 91,431.88, 126,201.36 and 53,198.81 is: 73,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,431.88 : 126,201.36 = 53,198.81 : x
  2. Step 2: Convert to fraction form
    91,431.88/126,201.36 = 53,198.81/x
  3. Step 3: Cross multiply
    91,431.88x = 126,201.36 × 53,198.81
  4. Step 4: Simplify right side
    91,431.88x = 6,713,761,906.39
  5. Step 5: Solve for x
    x = 6,713,761,906.39/91,431.88
  6. Step 6: Final answer
    x = 73,429.12

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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.