Home / 69,781.32-104,653.44-30,329.19

Finding the Fourth Proportional to 69,781.32, 104,653.44 and 30,329.19

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Solution

The fourth proportional to 69,781.32, 104,653.44 and 30,329.19 is: 45,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,781.32 : 104,653.44 = 30,329.19 : x
  2. Step 2: Convert to fraction form
    69,781.32/104,653.44 = 30,329.19/x
  3. Step 3: Cross multiply
    69,781.32x = 104,653.44 × 30,329.19
  4. Step 4: Simplify right side
    69,781.32x = 3,174,054,065.91
  5. Step 5: Solve for x
    x = 3,174,054,065.91/69,781.32
  6. Step 6: Final answer
    x = 45,485.73

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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.