Home / 85,072.70-117,393.38-49,265.04

Finding the Fourth Proportional to 85,072.70, 117,393.38 and 49,265.04

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Solution

The fourth proportional to 85,072.70, 117,393.38 and 49,265.04 is: 67,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.70 : 117,393.38 = 49,265.04 : x
  2. Step 2: Convert to fraction form
    85,072.70/117,393.38 = 49,265.04/x
  3. Step 3: Cross multiply
    85,072.70x = 117,393.38 × 49,265.04
  4. Step 4: Simplify right side
    85,072.70x = 5,783,389,561.44
  5. Step 5: Solve for x
    x = 5,783,389,561.44/85,072.70
  6. Step 6: Final answer
    x = 67,981.73

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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.