Home / 27,772-42,879

Finding the Third Proportional to 27,772 and 42,879

Calculator

Solution

The third proportional to 27,772 and 42,879 is: 66,203.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772 : 42,879 = 42,879 : x
  2. Step 2: Convert to fraction form
    27,772/42,879 = 42,879/x
  3. Step 3: Cross multiply
    27,772x = 42,879 × 42,879
  4. Step 4: Simplify right side
    27,772x = 1,838,608,641
  5. Step 5: Solve for x
    x = 1,838,608,641/27,772
  6. Step 6: Final answer
    x = 66,203.68

Related Problems

Find third proportional to 13,886 and 21,439.50
Half scale
Find third proportional to 55,544 and 85,758
Double scale
Find third proportional to 27,774 and 42,882
Similar ratio
Find third proportional to 41,658 and 64,318.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.