Home / 85,114.60-117,458.14-49,311.53

Finding the Fourth Proportional to 85,114.60, 117,458.14 and 49,311.53

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Solution

The fourth proportional to 85,114.60, 117,458.14 and 49,311.53 is: 68,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,114.60 : 117,458.14 = 49,311.53 : x
  2. Step 2: Convert to fraction form
    85,114.60/117,458.14 = 49,311.53/x
  3. Step 3: Cross multiply
    85,114.60x = 117,458.14 × 49,311.53
  4. Step 4: Simplify right side
    85,114.60x = 5,792,040,594.35
  5. Step 5: Solve for x
    x = 5,792,040,594.35/85,114.60
  6. Step 6: Final answer
    x = 68,049.91

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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.