Home / 43,678-65,879

Finding the Third Proportional to 43,678 and 65,879

Calculator

Solution

The third proportional to 43,678 and 65,879 is: 99,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678 : 65,879 = 65,879 : x
  2. Step 2: Convert to fraction form
    43,678/65,879 = 65,879/x
  3. Step 3: Cross multiply
    43,678x = 65,879 × 65,879
  4. Step 4: Simplify right side
    43,678x = 4,340,042,641
  5. Step 5: Solve for x
    x = 4,340,042,641/43,678
  6. Step 6: Final answer
    x = 99,364.50

Related Problems

Find third proportional to 21,839 and 32,939.50
Half scale
Find third proportional to 87,356 and 131,758
Double scale
Find third proportional to 43,680 and 65,882
Similar ratio
Find third proportional to 65,517 and 98,818.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.