Home / 91,984.41-126,843.98-76,871.43

Finding the Fourth Proportional to 91,984.41, 126,843.98 and 76,871.43

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Solution

The fourth proportional to 91,984.41, 126,843.98 and 76,871.43 is: 106,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,984.41 : 126,843.98 = 76,871.43 : x
  2. Step 2: Convert to fraction form
    91,984.41/126,843.98 = 76,871.43/x
  3. Step 3: Cross multiply
    91,984.41x = 126,843.98 × 76,871.43
  4. Step 4: Simplify right side
    91,984.41x = 9,750,677,745.13
  5. Step 5: Solve for x
    x = 9,750,677,745.13/91,984.41
  6. Step 6: Final answer
    x = 106,003.59

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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.