Home / 64,586-87,231

Finding the Third Proportional to 64,586 and 87,231

Calculator

Solution

The third proportional to 64,586 and 87,231 is: 117,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,586 : 87,231 = 87,231 : x
  2. Step 2: Convert to fraction form
    64,586/87,231 = 87,231/x
  3. Step 3: Cross multiply
    64,586x = 87,231 × 87,231
  4. Step 4: Simplify right side
    64,586x = 7,609,247,361
  5. Step 5: Solve for x
    x = 7,609,247,361/64,586
  6. Step 6: Final answer
    x = 117,815.74

Related Problems

Find third proportional to 32,293 and 43,615.50
Half scale
Find third proportional to 129,172 and 174,462
Double scale
Find third proportional to 64,588 and 87,234
Similar ratio
Find third proportional to 96,879 and 130,846.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.