Home / 27,540-42,750

Finding the Third Proportional to 27,540 and 42,750

Calculator

Solution

The third proportional to 27,540 and 42,750 is: 66,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,540 : 42,750 = 42,750 : x
  2. Step 2: Convert to fraction form
    27,540/42,750 = 42,750/x
  3. Step 3: Cross multiply
    27,540x = 42,750 × 42,750
  4. Step 4: Simplify right side
    27,540x = 1,827,562,500
  5. Step 5: Solve for x
    x = 1,827,562,500/27,540
  6. Step 6: Final answer
    x = 66,360.29

Related Problems

Find third proportional to 13,770 and 21,375
Half scale
Find third proportional to 55,080 and 85,500
Double scale
Find third proportional to 27,542 and 42,753
Similar ratio
Find third proportional to 41,310 and 64,125
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.