Home / 87,066.54-120,202.92-66,883.77

Finding the Fourth Proportional to 87,066.54, 120,202.92 and 66,883.77

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Solution

The fourth proportional to 87,066.54, 120,202.92 and 66,883.77 is: 92,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,066.54 : 120,202.92 = 66,883.77 : x
  2. Step 2: Convert to fraction form
    87,066.54/120,202.92 = 66,883.77/x
  3. Step 3: Cross multiply
    87,066.54x = 120,202.92 × 66,883.77
  4. Step 4: Simplify right side
    87,066.54x = 8,039,624,454.61
  5. Step 5: Solve for x
    x = 8,039,624,454.61/87,066.54
  6. Step 6: Final answer
    x = 92,338.85

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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.