Home / 61,029-81,457

Finding the Third Proportional to 61,029 and 81,457

Calculator

Solution

The third proportional to 61,029 and 81,457 is: 108,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,029 : 81,457 = 81,457 : x
  2. Step 2: Convert to fraction form
    61,029/81,457 = 81,457/x
  3. Step 3: Cross multiply
    61,029x = 81,457 × 81,457
  4. Step 4: Simplify right side
    61,029x = 6,635,242,849
  5. Step 5: Solve for x
    x = 6,635,242,849/61,029
  6. Step 6: Final answer
    x = 108,722.79

Related Problems

Find third proportional to 30,514.50 and 40,728.50
Half scale
Find third proportional to 122,058 and 162,914
Double scale
Find third proportional to 61,031 and 81,460
Similar ratio
Find third proportional to 91,543.50 and 122,185.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.