Home / 91,629.44-126,271.68-65,087.36

Finding the Fourth Proportional to 91,629.44, 126,271.68 and 65,087.36

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Solution

The fourth proportional to 91,629.44, 126,271.68 and 65,087.36 is: 89,694.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,629.44 : 126,271.68 = 65,087.36 : x
  2. Step 2: Convert to fraction form
    91,629.44/126,271.68 = 65,087.36/x
  3. Step 3: Cross multiply
    91,629.44x = 126,271.68 × 65,087.36
  4. Step 4: Simplify right side
    91,629.44x = 8,218,690,293.96
  5. Step 5: Solve for x
    x = 8,218,690,293.96/91,629.44
  6. Step 6: Final answer
    x = 89,694.87

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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.