Home / 56,218-85,479

Finding the Third Proportional to 56,218 and 85,479

Calculator

Solution

The third proportional to 56,218 and 85,479 is: 129,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218 : 85,479 = 85,479 : x
  2. Step 2: Convert to fraction form
    56,218/85,479 = 85,479/x
  3. Step 3: Cross multiply
    56,218x = 85,479 × 85,479
  4. Step 4: Simplify right side
    56,218x = 7,306,659,441
  5. Step 5: Solve for x
    x = 7,306,659,441/56,218
  6. Step 6: Final answer
    x = 129,970.11

Related Problems

Find third proportional to 28,109 and 42,739.50
Half scale
Find third proportional to 112,436 and 170,958
Double scale
Find third proportional to 56,220 and 85,482
Similar ratio
Find third proportional to 84,327 and 128,218.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.