Home / 30,218-64,589

Finding the Third Proportional to 30,218 and 64,589

Calculator

Solution

The third proportional to 30,218 and 64,589 is: 138,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218 : 64,589 = 64,589 : x
  2. Step 2: Convert to fraction form
    30,218/64,589 = 64,589/x
  3. Step 3: Cross multiply
    30,218x = 64,589 × 64,589
  4. Step 4: Simplify right side
    30,218x = 4,171,738,921
  5. Step 5: Solve for x
    x = 4,171,738,921/30,218
  6. Step 6: Final answer
    x = 138,054.77

Related Problems

Find third proportional to 15,109 and 32,294.50
Half scale
Find third proportional to 60,436 and 129,178
Double scale
Find third proportional to 30,220 and 64,593
Similar ratio
Find third proportional to 45,327 and 96,883.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.