Home / 74,479.89-111,684.72-27,061.55

Finding the Fourth Proportional to 74,479.89, 111,684.72 and 27,061.55

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Solution

The fourth proportional to 74,479.89, 111,684.72 and 27,061.55 is: 40,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,479.89 : 111,684.72 = 27,061.55 : x
  2. Step 2: Convert to fraction form
    74,479.89/111,684.72 = 27,061.55/x
  3. Step 3: Cross multiply
    74,479.89x = 111,684.72 × 27,061.55
  4. Step 4: Simplify right side
    74,479.89x = 3,022,361,076.09
  5. Step 5: Solve for x
    x = 3,022,361,076.09/74,479.89
  6. Step 6: Final answer
    x = 40,579.56

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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.