Home / 55,920-87,336

Finding the Third Proportional to 55,920 and 87,336

Calculator

Solution

The third proportional to 55,920 and 87,336 is: 136,401.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,920 : 87,336 = 87,336 : x
  2. Step 2: Convert to fraction form
    55,920/87,336 = 87,336/x
  3. Step 3: Cross multiply
    55,920x = 87,336 × 87,336
  4. Step 4: Simplify right side
    55,920x = 7,627,576,896
  5. Step 5: Solve for x
    x = 7,627,576,896/55,920
  6. Step 6: Final answer
    x = 136,401.59

Related Problems

Find third proportional to 27,960 and 43,668
Half scale
Find third proportional to 111,840 and 174,672
Double scale
Find third proportional to 55,922 and 87,339
Similar ratio
Find third proportional to 83,880 and 131,004
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.