Home / 40,338-56,421

Finding the Third Proportional to 40,338 and 56,421

Calculator

Solution

The third proportional to 40,338 and 56,421 is: 78,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,338 : 56,421 = 56,421 : x
  2. Step 2: Convert to fraction form
    40,338/56,421 = 56,421/x
  3. Step 3: Cross multiply
    40,338x = 56,421 × 56,421
  4. Step 4: Simplify right side
    40,338x = 3,183,329,241
  5. Step 5: Solve for x
    x = 3,183,329,241/40,338
  6. Step 6: Final answer
    x = 78,916.39

Related Problems

Find third proportional to 20,169 and 28,210.50
Half scale
Find third proportional to 80,676 and 112,842
Double scale
Find third proportional to 40,340 and 56,424
Similar ratio
Find third proportional to 60,507 and 84,631.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.