Home / 82,540.06-114,012.12-68,257.58

Finding the Fourth Proportional to 82,540.06, 114,012.12 and 68,257.58

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Solution

The fourth proportional to 82,540.06, 114,012.12 and 68,257.58 is: 94,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,540.06 : 114,012.12 = 68,257.58 : x
  2. Step 2: Convert to fraction form
    82,540.06/114,012.12 = 68,257.58/x
  3. Step 3: Cross multiply
    82,540.06x = 114,012.12 × 68,257.58
  4. Step 4: Simplify right side
    82,540.06x = 7,782,191,401.87
  5. Step 5: Solve for x
    x = 7,782,191,401.87/82,540.06
  6. Step 6: Final answer
    x = 94,283.81

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1.5x scale

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.