Home / 91,418.31-126,163.85-51,145.02

Finding the Fourth Proportional to 91,418.31, 126,163.85 and 51,145.02

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Solution

The fourth proportional to 91,418.31, 126,163.85 and 51,145.02 is: 70,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,418.31 : 126,163.85 = 51,145.02 : x
  2. Step 2: Convert to fraction form
    91,418.31/126,163.85 = 51,145.02/x
  3. Step 3: Cross multiply
    91,418.31x = 126,163.85 × 51,145.02
  4. Step 4: Simplify right side
    91,418.31x = 6,452,652,375.80
  5. Step 5: Solve for x
    x = 6,452,652,375.80/91,418.31
  6. Step 6: Final answer
    x = 70,583.81

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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.