Home / 69,387-76,677

Finding the Third Proportional to 69,387 and 76,677

Calculator

Solution

The third proportional to 69,387 and 76,677 is: 84,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,387 : 76,677 = 76,677 : x
  2. Step 2: Convert to fraction form
    69,387/76,677 = 76,677/x
  3. Step 3: Cross multiply
    69,387x = 76,677 × 76,677
  4. Step 4: Simplify right side
    69,387x = 5,879,362,329
  5. Step 5: Solve for x
    x = 5,879,362,329/69,387
  6. Step 6: Final answer
    x = 84,732.91

Related Problems

Find third proportional to 34,693.50 and 38,338.50
Half scale
Find third proportional to 138,774 and 153,354
Double scale
Find third proportional to 69,389 and 76,679
Similar ratio
Find third proportional to 104,080.50 and 115,015.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.