Home / 91,190.22-125,839.22-57,217.02

Finding the Fourth Proportional to 91,190.22, 125,839.22 and 57,217.02

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Solution

The fourth proportional to 91,190.22, 125,839.22 and 57,217.02 is: 78,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,190.22 : 125,839.22 = 57,217.02 : x
  2. Step 2: Convert to fraction form
    91,190.22/125,839.22 = 57,217.02/x
  3. Step 3: Cross multiply
    91,190.22x = 125,839.22 × 57,217.02
  4. Step 4: Simplify right side
    91,190.22x = 7,200,145,167.52
  5. Step 5: Solve for x
    x = 7,200,145,167.52/91,190.22
  6. Step 6: Final answer
    x = 78,957.43

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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.