Home / 91,108.43-125,788.17-57,163.49

Finding the Fourth Proportional to 91,108.43, 125,788.17 and 57,163.49

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Solution

The fourth proportional to 91,108.43, 125,788.17 and 57,163.49 is: 78,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,108.43 : 125,788.17 = 57,163.49 : x
  2. Step 2: Convert to fraction form
    91,108.43/125,788.17 = 57,163.49/x
  3. Step 3: Cross multiply
    91,108.43x = 125,788.17 × 57,163.49
  4. Step 4: Simplify right side
    91,108.43x = 7,190,490,168.97
  5. Step 5: Solve for x
    x = 7,190,490,168.97/91,108.43
  6. Step 6: Final answer
    x = 78,922.34

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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.