Home / 84,380.94-126,546.30-31,777.92

Finding the Fourth Proportional to 84,380.94, 126,546.30 and 31,777.92

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Solution

The fourth proportional to 84,380.94, 126,546.30 and 31,777.92 is: 47,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,380.94 : 126,546.30 = 31,777.92 : x
  2. Step 2: Convert to fraction form
    84,380.94/126,546.30 = 31,777.92/x
  3. Step 3: Cross multiply
    84,380.94x = 126,546.30 × 31,777.92
  4. Step 4: Simplify right side
    84,380.94x = 4,021,378,197.70
  5. Step 5: Solve for x
    x = 4,021,378,197.70/84,380.94
  6. Step 6: Final answer
    x = 47,657.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.