Home / 70,989.38-97,965.97-38,724.14

Finding the Fourth Proportional to 70,989.38, 97,965.97 and 38,724.14

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Solution

The fourth proportional to 70,989.38, 97,965.97 and 38,724.14 is: 53,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,989.38 : 97,965.97 = 38,724.14 : x
  2. Step 2: Convert to fraction form
    70,989.38/97,965.97 = 38,724.14/x
  3. Step 3: Cross multiply
    70,989.38x = 97,965.97 × 38,724.14
  4. Step 4: Simplify right side
    70,989.38x = 3,793,647,743.90
  5. Step 5: Solve for x
    x = 3,793,647,743.90/70,989.38
  6. Step 6: Final answer
    x = 53,439.65

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1.5x scale

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.