Home / 51,358-78,906

Finding the Third Proportional to 51,358 and 78,906

Calculator

Solution

The third proportional to 51,358 and 78,906 is: 121,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,358 : 78,906 = 78,906 : x
  2. Step 2: Convert to fraction form
    51,358/78,906 = 78,906/x
  3. Step 3: Cross multiply
    51,358x = 78,906 × 78,906
  4. Step 4: Simplify right side
    51,358x = 6,226,156,836
  5. Step 5: Solve for x
    x = 6,226,156,836/51,358
  6. Step 6: Final answer
    x = 121,230.52

Related Problems

Find third proportional to 25,679 and 39,453
Half scale
Find third proportional to 102,716 and 157,812
Double scale
Find third proportional to 51,360 and 78,909
Similar ratio
Find third proportional to 77,037 and 118,359
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.