Home / 87,570.44-120,847.98-49,847.12

Finding the Fourth Proportional to 87,570.44, 120,847.98 and 49,847.12

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Solution

The fourth proportional to 87,570.44, 120,847.98 and 49,847.12 is: 68,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,570.44 : 120,847.98 = 49,847.12 : x
  2. Step 2: Convert to fraction form
    87,570.44/120,847.98 = 49,847.12/x
  3. Step 3: Cross multiply
    87,570.44x = 120,847.98 × 49,847.12
  4. Step 4: Simplify right side
    87,570.44x = 6,023,923,760.82
  5. Step 5: Solve for x
    x = 6,023,923,760.82/87,570.44
  6. Step 6: Final answer
    x = 68,789.47

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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.