Home / 87,986.06-121,438.41-52,195.94

Finding the Fourth Proportional to 87,986.06, 121,438.41 and 52,195.94

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Solution

The fourth proportional to 87,986.06, 121,438.41 and 52,195.94 is: 72,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.06 : 121,438.41 = 52,195.94 : x
  2. Step 2: Convert to fraction form
    87,986.06/121,438.41 = 52,195.94/x
  3. Step 3: Cross multiply
    87,986.06x = 121,438.41 × 52,195.94
  4. Step 4: Simplify right side
    87,986.06x = 6,338,591,962.06
  5. Step 5: Solve for x
    x = 6,338,591,962.06/87,986.06
  6. Step 6: Final answer
    x = 72,040.87

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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.