Home / 87,651.12-120,958.44-47,364.84

Finding the Fourth Proportional to 87,651.12, 120,958.44 and 47,364.84

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Solution

The fourth proportional to 87,651.12, 120,958.44 and 47,364.84 is: 65,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651.12 : 120,958.44 = 47,364.84 : x
  2. Step 2: Convert to fraction form
    87,651.12/120,958.44 = 47,364.84/x
  3. Step 3: Cross multiply
    87,651.12x = 120,958.44 × 47,364.84
  4. Step 4: Simplify right side
    87,651.12x = 5,729,177,157.25
  5. Step 5: Solve for x
    x = 5,729,177,157.25/87,651.12
  6. Step 6: Final answer
    x = 65,363.42

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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.