Home / 91,902.34-126,809.97-54,171.46

Finding the Fourth Proportional to 91,902.34, 126,809.97 and 54,171.46

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Solution

The fourth proportional to 91,902.34, 126,809.97 and 54,171.46 is: 74,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,902.34 : 126,809.97 = 54,171.46 : x
  2. Step 2: Convert to fraction form
    91,902.34/126,809.97 = 54,171.46/x
  3. Step 3: Cross multiply
    91,902.34x = 126,809.97 × 54,171.46
  4. Step 4: Simplify right side
    91,902.34x = 6,869,481,217.46
  5. Step 5: Solve for x
    x = 6,869,481,217.46/91,902.34
  6. Step 6: Final answer
    x = 74,747.62

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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.