Home / 70,639.14-105,958.44-18,048.54

Finding the Fourth Proportional to 70,639.14, 105,958.44 and 18,048.54

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Solution

The fourth proportional to 70,639.14, 105,958.44 and 18,048.54 is: 27,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.14 : 105,958.44 = 18,048.54 : x
  2. Step 2: Convert to fraction form
    70,639.14/105,958.44 = 18,048.54/x
  3. Step 3: Cross multiply
    70,639.14x = 105,958.44 × 18,048.54
  4. Step 4: Simplify right side
    70,639.14x = 1,912,395,142.68
  5. Step 5: Solve for x
    x = 1,912,395,142.68/70,639.14
  6. Step 6: Final answer
    x = 27,072.74

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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.