Home / 80,986.41-111,838.20-62,090.73

Finding the Fourth Proportional to 80,986.41, 111,838.20 and 62,090.73

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Solution

The fourth proportional to 80,986.41, 111,838.20 and 62,090.73 is: 85,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,986.41 : 111,838.20 = 62,090.73 : x
  2. Step 2: Convert to fraction form
    80,986.41/111,838.20 = 62,090.73/x
  3. Step 3: Cross multiply
    80,986.41x = 111,838.20 × 62,090.73
  4. Step 4: Simplify right side
    80,986.41x = 6,944,115,479.89
  5. Step 5: Solve for x
    x = 6,944,115,479.89/80,986.41
  6. Step 6: Final answer
    x = 85,744.21

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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.