Home / 40,684-84,487

Finding the Third Proportional to 40,684 and 84,487

Calculator

Solution

The third proportional to 40,684 and 84,487 is: 175,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,684 : 84,487 = 84,487 : x
  2. Step 2: Convert to fraction form
    40,684/84,487 = 84,487/x
  3. Step 3: Cross multiply
    40,684x = 84,487 × 84,487
  4. Step 4: Simplify right side
    40,684x = 7,138,053,169
  5. Step 5: Solve for x
    x = 7,138,053,169/40,684
  6. Step 6: Final answer
    x = 175,451.12

Related Problems

Find third proportional to 20,342 and 42,243.50
Half scale
Find third proportional to 81,368 and 168,974
Double scale
Find third proportional to 40,686 and 84,491
Similar ratio
Find third proportional to 61,026 and 126,730.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.