Home / 54,776-78,276

Finding the Third Proportional to 54,776 and 78,276

Calculator

Solution

The third proportional to 54,776 and 78,276 is: 111,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,776 : 78,276 = 78,276 : x
  2. Step 2: Convert to fraction form
    54,776/78,276 = 78,276/x
  3. Step 3: Cross multiply
    54,776x = 78,276 × 78,276
  4. Step 4: Simplify right side
    54,776x = 6,127,132,176
  5. Step 5: Solve for x
    x = 6,127,132,176/54,776
  6. Step 6: Final answer
    x = 111,857.97

Related Problems

Find third proportional to 27,388 and 39,138
Half scale
Find third proportional to 109,552 and 156,552
Double scale
Find third proportional to 54,778 and 78,279
Similar ratio
Find third proportional to 82,164 and 117,414
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.