Home / 81,755.38-122,544.90-39,546.28

Finding the Fourth Proportional to 81,755.38, 122,544.90 and 39,546.28

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Solution

The fourth proportional to 81,755.38, 122,544.90 and 39,546.28 is: 59,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,755.38 : 122,544.90 = 39,546.28 : x
  2. Step 2: Convert to fraction form
    81,755.38/122,544.90 = 39,546.28/x
  3. Step 3: Cross multiply
    81,755.38x = 122,544.90 × 39,546.28
  4. Step 4: Simplify right side
    81,755.38x = 4,846,194,391.84
  5. Step 5: Solve for x
    x = 4,846,194,391.84/81,755.38
  6. Step 6: Final answer
    x = 59,276.77

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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.