Home / 81,512.06-122,268.56-37,107.76

Finding the Fourth Proportional to 81,512.06, 122,268.56 and 37,107.76

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Solution

The fourth proportional to 81,512.06, 122,268.56 and 37,107.76 is: 55,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.06 : 122,268.56 = 37,107.76 : x
  2. Step 2: Convert to fraction form
    81,512.06/122,268.56 = 37,107.76/x
  3. Step 3: Cross multiply
    81,512.06x = 122,268.56 × 37,107.76
  4. Step 4: Simplify right side
    81,512.06x = 4,537,112,380.03
  5. Step 5: Solve for x
    x = 4,537,112,380.03/81,512.06
  6. Step 6: Final answer
    x = 55,661.85

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1.5x scale

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.