Home / 75,781.62-113,684.07-25,850.05

Finding the Fourth Proportional to 75,781.62, 113,684.07 and 25,850.05

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Solution

The fourth proportional to 75,781.62, 113,684.07 and 25,850.05 is: 38,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.62 : 113,684.07 = 25,850.05 : x
  2. Step 2: Convert to fraction form
    75,781.62/113,684.07 = 25,850.05/x
  3. Step 3: Cross multiply
    75,781.62x = 113,684.07 × 25,850.05
  4. Step 4: Simplify right side
    75,781.62x = 2,938,738,706.43
  5. Step 5: Solve for x
    x = 2,938,738,706.43/75,781.62
  6. Step 6: Final answer
    x = 38,779.04

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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.