Home / 74,704.17-112,121.99-39,190.87

Finding the Fourth Proportional to 74,704.17, 112,121.99 and 39,190.87

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Solution

The fourth proportional to 74,704.17, 112,121.99 and 39,190.87 is: 58,820.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704.17 : 112,121.99 = 39,190.87 : x
  2. Step 2: Convert to fraction form
    74,704.17/112,121.99 = 39,190.87/x
  3. Step 3: Cross multiply
    74,704.17x = 112,121.99 × 39,190.87
  4. Step 4: Simplify right side
    74,704.17x = 4,394,157,773.62
  5. Step 5: Solve for x
    x = 4,394,157,773.62/74,704.17
  6. Step 6: Final answer
    x = 58,820.78

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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.