Home / 39,615-84,084

Finding the Third Proportional to 39,615 and 84,084

Calculator

Solution

The third proportional to 39,615 and 84,084 is: 178,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,615 : 84,084 = 84,084 : x
  2. Step 2: Convert to fraction form
    39,615/84,084 = 84,084/x
  3. Step 3: Cross multiply
    39,615x = 84,084 × 84,084
  4. Step 4: Simplify right side
    39,615x = 7,070,119,056
  5. Step 5: Solve for x
    x = 7,070,119,056/39,615
  6. Step 6: Final answer
    x = 178,470.76

Related Problems

Find third proportional to 19,807.50 and 42,042
Half scale
Find third proportional to 79,230 and 168,168
Double scale
Find third proportional to 39,617 and 84,088
Similar ratio
Find third proportional to 59,422.50 and 126,126
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.