Home / 91,911.09-126,805-60,098.61

Finding the Fourth Proportional to 91,911.09, 126,805 and 60,098.61

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Solution

The fourth proportional to 91,911.09, 126,805 and 60,098.61 is: 82,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,911.09 : 126,805 = 60,098.61 : x
  2. Step 2: Convert to fraction form
    91,911.09/126,805 = 60,098.61/x
  3. Step 3: Cross multiply
    91,911.09x = 126,805 × 60,098.61
  4. Step 4: Simplify right side
    91,911.09x = 7,620,804,241.05
  5. Step 5: Solve for x
    x = 7,620,804,241.05/91,911.09
  6. Step 6: Final answer
    x = 82,914.96

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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.