Home / 85,197.70-117,572.83-49,408.47

Finding the Fourth Proportional to 85,197.70, 117,572.83 and 49,408.47

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Solution

The fourth proportional to 85,197.70, 117,572.83 and 49,408.47 is: 68,183.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,197.70 : 117,572.83 = 49,408.47 : x
  2. Step 2: Convert to fraction form
    85,197.70/117,572.83 = 49,408.47/x
  3. Step 3: Cross multiply
    85,197.70x = 117,572.83 × 49,408.47
  4. Step 4: Simplify right side
    85,197.70x = 5,809,093,643.87
  5. Step 5: Solve for x
    x = 5,809,093,643.87/85,197.70
  6. Step 6: Final answer
    x = 68,183.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.