Home / 91,694.25-126,497.97-64,859.76

Finding the Fourth Proportional to 91,694.25, 126,497.97 and 64,859.76

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Solution

The fourth proportional to 91,694.25, 126,497.97 and 64,859.76 is: 89,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,694.25 : 126,497.97 = 64,859.76 : x
  2. Step 2: Convert to fraction form
    91,694.25/126,497.97 = 64,859.76/x
  3. Step 3: Cross multiply
    91,694.25x = 126,497.97 × 64,859.76
  4. Step 4: Simplify right side
    91,694.25x = 8,204,627,974.69
  5. Step 5: Solve for x
    x = 8,204,627,974.69/91,694.25
  6. Step 6: Final answer
    x = 89,478.11

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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.