Home / 54,316-81,138

Finding the Third Proportional to 54,316 and 81,138

Calculator

Solution

The third proportional to 54,316 and 81,138 is: 121,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,316 : 81,138 = 81,138 : x
  2. Step 2: Convert to fraction form
    54,316/81,138 = 81,138/x
  3. Step 3: Cross multiply
    54,316x = 81,138 × 81,138
  4. Step 4: Simplify right side
    54,316x = 6,583,375,044
  5. Step 5: Solve for x
    x = 6,583,375,044/54,316
  6. Step 6: Final answer
    x = 121,205.08

Related Problems

Find third proportional to 27,158 and 40,569
Half scale
Find third proportional to 108,632 and 162,276
Double scale
Find third proportional to 54,318 and 81,141
Similar ratio
Find third proportional to 81,474 and 121,707
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.