Home / 61,009-90,979

Finding the Third Proportional to 61,009 and 90,979

Calculator

Solution

The third proportional to 61,009 and 90,979 is: 135,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,009 : 90,979 = 90,979 : x
  2. Step 2: Convert to fraction form
    61,009/90,979 = 90,979/x
  3. Step 3: Cross multiply
    61,009x = 90,979 × 90,979
  4. Step 4: Simplify right side
    61,009x = 8,277,178,441
  5. Step 5: Solve for x
    x = 8,277,178,441/61,009
  6. Step 6: Final answer
    x = 135,671.43

Related Problems

Find third proportional to 30,504.50 and 45,489.50
Half scale
Find third proportional to 122,018 and 181,958
Double scale
Find third proportional to 61,011 and 90,982
Similar ratio
Find third proportional to 91,513.50 and 136,468.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.