Home / 81,512.22-122,268.74-37,107.92

Finding the Fourth Proportional to 81,512.22, 122,268.74 and 37,107.92

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Solution

The fourth proportional to 81,512.22, 122,268.74 and 37,107.92 is: 55,662.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.22 : 122,268.74 = 37,107.92 : x
  2. Step 2: Convert to fraction form
    81,512.22/122,268.74 = 37,107.92/x
  3. Step 3: Cross multiply
    81,512.22x = 122,268.74 × 37,107.92
  4. Step 4: Simplify right side
    81,512.22x = 4,537,137,825.54
  5. Step 5: Solve for x
    x = 4,537,137,825.54/81,512.22
  6. Step 6: Final answer
    x = 55,662.06

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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.