Home / 60,728.20-91,286.70-43,318.60

Finding the Fourth Proportional to 60,728.20, 91,286.70 and 43,318.60

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Solution

The fourth proportional to 60,728.20, 91,286.70 and 43,318.60 is: 65,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.20 : 91,286.70 = 43,318.60 : x
  2. Step 2: Convert to fraction form
    60,728.20/91,286.70 = 43,318.60/x
  3. Step 3: Cross multiply
    60,728.20x = 91,286.70 × 43,318.60
  4. Step 4: Simplify right side
    60,728.20x = 3,954,412,042.62
  5. Step 5: Solve for x
    x = 3,954,412,042.62/60,728.20
  6. Step 6: Final answer
    x = 65,116.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.