Home / 70,724.81-106,093.60-18,134.75

Finding the Fourth Proportional to 70,724.81, 106,093.60 and 18,134.75

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Solution

The fourth proportional to 70,724.81, 106,093.60 and 18,134.75 is: 27,203.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,724.81 : 106,093.60 = 18,134.75 : x
  2. Step 2: Convert to fraction form
    70,724.81/106,093.60 = 18,134.75/x
  3. Step 3: Cross multiply
    70,724.81x = 106,093.60 × 18,134.75
  4. Step 4: Simplify right side
    70,724.81x = 1,923,981,132.50
  5. Step 5: Solve for x
    x = 1,923,981,132.50/70,724.81
  6. Step 6: Final answer
    x = 27,203.76

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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.