Home / 55,786-78,206

Finding the Third Proportional to 55,786 and 78,206

Calculator

Solution

The third proportional to 55,786 and 78,206 is: 109,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,786 : 78,206 = 78,206 : x
  2. Step 2: Convert to fraction form
    55,786/78,206 = 78,206/x
  3. Step 3: Cross multiply
    55,786x = 78,206 × 78,206
  4. Step 4: Simplify right side
    55,786x = 6,116,178,436
  5. Step 5: Solve for x
    x = 6,116,178,436/55,786
  6. Step 6: Final answer
    x = 109,636.44

Related Problems

Find third proportional to 27,893 and 39,103
Half scale
Find third proportional to 111,572 and 156,412
Double scale
Find third proportional to 55,788 and 78,209
Similar ratio
Find third proportional to 83,679 and 117,309
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.