Home / 74,644.68-111,970.26-27,872.04

Finding the Fourth Proportional to 74,644.68, 111,970.26 and 27,872.04

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Solution

The fourth proportional to 74,644.68, 111,970.26 and 27,872.04 is: 41,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,644.68 : 111,970.26 = 27,872.04 : x
  2. Step 2: Convert to fraction form
    74,644.68/111,970.26 = 27,872.04/x
  3. Step 3: Cross multiply
    74,644.68x = 111,970.26 × 27,872.04
  4. Step 4: Simplify right side
    74,644.68x = 3,120,839,565.53
  5. Step 5: Solve for x
    x = 3,120,839,565.53/74,644.68
  6. Step 6: Final answer
    x = 41,809.27

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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.