Home / 43,290-66,495

Finding the Third Proportional to 43,290 and 66,495

Calculator

Solution

The third proportional to 43,290 and 66,495 is: 102,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,290 : 66,495 = 66,495 : x
  2. Step 2: Convert to fraction form
    43,290/66,495 = 66,495/x
  3. Step 3: Cross multiply
    43,290x = 66,495 × 66,495
  4. Step 4: Simplify right side
    43,290x = 4,421,585,025
  5. Step 5: Solve for x
    x = 4,421,585,025/43,290
  6. Step 6: Final answer
    x = 102,138.72

Related Problems

Find third proportional to 21,645 and 33,247.50
Half scale
Find third proportional to 86,580 and 132,990
Double scale
Find third proportional to 43,292 and 66,498
Similar ratio
Find third proportional to 64,935 and 99,742.50
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.