Home / 69,998.38-104,976-20,065.12

Finding the Fourth Proportional to 69,998.38, 104,976 and 20,065.12

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Solution

The fourth proportional to 69,998.38, 104,976 and 20,065.12 is: 30,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,998.38 : 104,976 = 20,065.12 : x
  2. Step 2: Convert to fraction form
    69,998.38/104,976 = 20,065.12/x
  3. Step 3: Cross multiply
    69,998.38x = 104,976 × 20,065.12
  4. Step 4: Simplify right side
    69,998.38x = 2,106,355,774.68
  5. Step 5: Solve for x
    x = 2,106,355,774.68/69,998.38
  6. Step 6: Final answer
    x = 30,091.49

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1.5x scale

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.