Home / 55,278-86,169

Finding the Third Proportional to 55,278 and 86,169

Calculator

Solution

The third proportional to 55,278 and 86,169 is: 134,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278 : 86,169 = 86,169 : x
  2. Step 2: Convert to fraction form
    55,278/86,169 = 86,169/x
  3. Step 3: Cross multiply
    55,278x = 86,169 × 86,169
  4. Step 4: Simplify right side
    55,278x = 7,425,096,561
  5. Step 5: Solve for x
    x = 7,425,096,561/55,278
  6. Step 6: Final answer
    x = 134,322.81

Related Problems

Find third proportional to 27,639 and 43,084.50
Half scale
Find third proportional to 110,556 and 172,338
Double scale
Find third proportional to 55,280 and 86,172
Similar ratio
Find third proportional to 82,917 and 129,253.50
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.