Home / 54,400-83,640

Finding the Third Proportional to 54,400 and 83,640

Calculator

Solution

The third proportional to 54,400 and 83,640 is: 128,596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,400 : 83,640 = 83,640 : x
  2. Step 2: Convert to fraction form
    54,400/83,640 = 83,640/x
  3. Step 3: Cross multiply
    54,400x = 83,640 × 83,640
  4. Step 4: Simplify right side
    54,400x = 6,995,649,600
  5. Step 5: Solve for x
    x = 6,995,649,600/54,400
  6. Step 6: Final answer
    x = 128,596.50

Related Problems

Find third proportional to 27,200 and 41,820
Half scale
Find third proportional to 108,800 and 167,280
Double scale
Find third proportional to 54,402 and 83,643
Similar ratio
Find third proportional to 81,600 and 125,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.