Finding the Third Proportional to 65.50 and 73
Calculator
Solution
The third proportional to 65.50 and 73 is: 81.36
Step by Step Solution
- Step 1: Write the proportion equation
65.50 : 73 = 73 : x - Step 2: Convert to fraction form
65.50/73 = 73/x - Step 3: Cross multiply
65.50x = 73 × 73 - Step 4: Simplify right side
65.50x = 5,329 - Step 5: Solve for x
x = 5,329/65.50 - Step 6: Final answer
x = 81.36
Related Problems
Find third proportional to 32.75 and 36.50
Half scale
Find third proportional to 131 and 146
Double scale
Find third proportional to 68 and 75
Similar ratio
Find third proportional to 98.25 and 109.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.