Home / 30,239-64,138

Finding the Third Proportional to 30,239 and 64,138

Calculator

Solution

The third proportional to 30,239 and 64,138 is: 136,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239 : 64,138 = 64,138 : x
  2. Step 2: Convert to fraction form
    30,239/64,138 = 64,138/x
  3. Step 3: Cross multiply
    30,239x = 64,138 × 64,138
  4. Step 4: Simplify right side
    30,239x = 4,113,683,044
  5. Step 5: Solve for x
    x = 4,113,683,044/30,239
  6. Step 6: Final answer
    x = 136,038.99

Related Problems

Find third proportional to 15,119.50 and 32,069
Half scale
Find third proportional to 60,478 and 128,276
Double scale
Find third proportional to 30,241 and 64,142
Similar ratio
Find third proportional to 45,358.50 and 96,207
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.