Home / 91,984.94-126,844.71-76,871.96

Finding the Fourth Proportional to 91,984.94, 126,844.71 and 76,871.96

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Solution

The fourth proportional to 91,984.94, 126,844.71 and 76,871.96 is: 106,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,984.94 : 126,844.71 = 76,871.96 : x
  2. Step 2: Convert to fraction form
    91,984.94/126,844.71 = 76,871.96/x
  3. Step 3: Cross multiply
    91,984.94x = 126,844.71 × 76,871.96
  4. Step 4: Simplify right side
    91,984.94x = 9,750,801,473.33
  5. Step 5: Solve for x
    x = 9,750,801,473.33/91,984.94
  6. Step 6: Final answer
    x = 106,004.32

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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.