Home / 81,512.25-122,279.31-34,776.06

Finding the Fourth Proportional to 81,512.25, 122,279.31 and 34,776.06

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Solution

The fourth proportional to 81,512.25, 122,279.31 and 34,776.06 is: 52,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.25 : 122,279.31 = 34,776.06 : x
  2. Step 2: Convert to fraction form
    81,512.25/122,279.31 = 34,776.06/x
  3. Step 3: Cross multiply
    81,512.25x = 122,279.31 × 34,776.06
  4. Step 4: Simplify right side
    81,512.25x = 4,252,392,621.32
  5. Step 5: Solve for x
    x = 4,252,392,621.32/81,512.25
  6. Step 6: Final answer
    x = 52,168.76

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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.