Home / 55,509-84,654

Finding the Third Proportional to 55,509 and 84,654

Calculator

Solution

The third proportional to 55,509 and 84,654 is: 129,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,509 : 84,654 = 84,654 : x
  2. Step 2: Convert to fraction form
    55,509/84,654 = 84,654/x
  3. Step 3: Cross multiply
    55,509x = 84,654 × 84,654
  4. Step 4: Simplify right side
    55,509x = 7,166,299,716
  5. Step 5: Solve for x
    x = 7,166,299,716/55,509
  6. Step 6: Final answer
    x = 129,101.58

Related Problems

Find third proportional to 27,754.50 and 42,327
Half scale
Find third proportional to 111,018 and 169,308
Double scale
Find third proportional to 55,511 and 84,657
Similar ratio
Find third proportional to 83,263.50 and 126,981
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.