Home / 87,786-131,679-22,122

Finding the Fourth Proportional to 87,786, 131,679 and 22,122

Calculator

Solution

The fourth proportional to 87,786, 131,679 and 22,122 is: 33,183

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786 : 131,679 = 22,122 : x
  2. Step 2: Convert to fraction form
    87,786/131,679 = 22,122/x
  3. Step 3: Cross multiply
    87,786x = 131,679 × 22,122
  4. Step 4: Simplify right side
    87,786x = 2,913,002,838
  5. Step 5: Solve for x
    x = 2,913,002,838/87,786
  6. Step 6: Final answer
    x = 33,183

Related Problems

Find fourth proportional to 43,893, 65,839.50 and 11,061
Half scale
Find fourth proportional to 175,572, 263,358 and 44,244
Double scale
Find fourth proportional to 87,787, 131,680.50 and 22,123
Similar ratio
Find fourth proportional to 131,679, 197,518.50 and 33,183
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.