Home / 66,654-91,982.50-36,439.45

Finding the Fourth Proportional to 66,654, 91,982.50 and 36,439.45

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Solution

The fourth proportional to 66,654, 91,982.50 and 36,439.45 is: 50,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,654 : 91,982.50 = 36,439.45 : x
  2. Step 2: Convert to fraction form
    66,654/91,982.50 = 36,439.45/x
  3. Step 3: Cross multiply
    66,654x = 91,982.50 × 36,439.45
  4. Step 4: Simplify right side
    66,654x = 3,351,791,388.57
  5. Step 5: Solve for x
    x = 3,351,791,388.57/66,654
  6. Step 6: Final answer
    x = 50,286.43

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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.