Home / 66,730.50-90,072

Finding the Third Proportional to 66,730.50 and 90,072

Calculator

Solution

The third proportional to 66,730.50 and 90,072 is: 121,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730.50 : 90,072 = 90,072 : x
  2. Step 2: Convert to fraction form
    66,730.50/90,072 = 90,072/x
  3. Step 3: Cross multiply
    66,730.50x = 90,072 × 90,072
  4. Step 4: Simplify right side
    66,730.50x = 8,112,965,184
  5. Step 5: Solve for x
    x = 8,112,965,184/66,730.50
  6. Step 6: Final answer
    x = 121,578.07

Related Problems

Find third proportional to 33,365.25 and 45,036
Half scale
Find third proportional to 133,461 and 180,144
Double scale
Find third proportional to 66,733 and 90,075
Similar ratio
Find third proportional to 100,095.75 and 135,108
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.