Home / 87,003.16-120,122.21-66,823.97

Finding the Fourth Proportional to 87,003.16, 120,122.21 and 66,823.97

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Solution

The fourth proportional to 87,003.16, 120,122.21 and 66,823.97 is: 92,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,003.16 : 120,122.21 = 66,823.97 : x
  2. Step 2: Convert to fraction form
    87,003.16/120,122.21 = 66,823.97/x
  3. Step 3: Cross multiply
    87,003.16x = 120,122.21 × 66,823.97
  4. Step 4: Simplify right side
    87,003.16x = 8,027,042,957.37
  5. Step 5: Solve for x
    x = 8,027,042,957.37/87,003.16
  6. Step 6: Final answer
    x = 92,261.51

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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.