Home / 40,909-84,428

Finding the Third Proportional to 40,909 and 84,428

Calculator

Solution

The third proportional to 40,909 and 84,428 is: 174,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,909 : 84,428 = 84,428 : x
  2. Step 2: Convert to fraction form
    40,909/84,428 = 84,428/x
  3. Step 3: Cross multiply
    40,909x = 84,428 × 84,428
  4. Step 4: Simplify right side
    40,909x = 7,128,087,184
  5. Step 5: Solve for x
    x = 7,128,087,184/40,909
  6. Step 6: Final answer
    x = 174,242.52

Related Problems

Find third proportional to 20,454.50 and 42,214
Half scale
Find third proportional to 81,818 and 168,856
Double scale
Find third proportional to 40,911 and 84,432
Similar ratio
Find third proportional to 61,363.50 and 126,642
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.