Home / 53,609-120,879

Finding the Third Proportional to 53,609 and 120,879

Calculator

Solution

The third proportional to 53,609 and 120,879 is: 272,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,609 : 120,879 = 120,879 : x
  2. Step 2: Convert to fraction form
    53,609/120,879 = 120,879/x
  3. Step 3: Cross multiply
    53,609x = 120,879 × 120,879
  4. Step 4: Simplify right side
    53,609x = 14,611,732,641
  5. Step 5: Solve for x
    x = 14,611,732,641/53,609
  6. Step 6: Final answer
    x = 272,561.19

Related Problems

Find third proportional to 26,804.50 and 60,439.50
Half scale
Find third proportional to 107,218 and 241,758
Double scale
Find third proportional to 53,611 and 120,884
Similar ratio
Find third proportional to 80,413.50 and 181,318.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.