Home / 56,800-87,858

Finding the Third Proportional to 56,800 and 87,858

Calculator

Solution

The third proportional to 56,800 and 87,858 is: 135,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,800 : 87,858 = 87,858 : x
  2. Step 2: Convert to fraction form
    56,800/87,858 = 87,858/x
  3. Step 3: Cross multiply
    56,800x = 87,858 × 87,858
  4. Step 4: Simplify right side
    56,800x = 7,719,028,164
  5. Step 5: Solve for x
    x = 7,719,028,164/56,800
  6. Step 6: Final answer
    x = 135,898.38

Related Problems

Find third proportional to 28,400 and 43,929
Half scale
Find third proportional to 113,600 and 175,716
Double scale
Find third proportional to 56,802 and 87,861
Similar ratio
Find third proportional to 85,200 and 131,787
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.