Home / 39,420-61,479

Finding the Third Proportional to 39,420 and 61,479

Calculator

Solution

The third proportional to 39,420 and 61,479 is: 95,881.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420 : 61,479 = 61,479 : x
  2. Step 2: Convert to fraction form
    39,420/61,479 = 61,479/x
  3. Step 3: Cross multiply
    39,420x = 61,479 × 61,479
  4. Step 4: Simplify right side
    39,420x = 3,779,667,441
  5. Step 5: Solve for x
    x = 3,779,667,441/39,420
  6. Step 6: Final answer
    x = 95,881.97

Related Problems

Find third proportional to 19,710 and 30,739.50
Half scale
Find third proportional to 78,840 and 122,958
Double scale
Find third proportional to 39,422 and 61,482
Similar ratio
Find third proportional to 59,130 and 92,218.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.