Finding the Fourth Proportional to 67,163.40, 100,811.12 and 51,220.17
Calculator
Solution
The fourth proportional to 67,163.40, 100,811.12 and 51,220.17 is: 76,880.60
Step by Step Solution
- Step 1: Write the proportion equation
67,163.40 : 100,811.12 = 51,220.17 : x - Step 2: Convert to fraction form
67,163.40/100,811.12 = 51,220.17/x - Step 3: Cross multiply
67,163.40x = 100,811.12 × 51,220.17 - Step 4: Simplify right side
67,163.40x = 5,163,562,448.19 - Step 5: Solve for x
x = 5,163,562,448.19/67,163.40 - Step 6: Final answer
x = 76,880.60
Related Problems
Find fourth proportional to 33,581.70, 50,405.56 and 25,610.09
Half scale
Find fourth proportional to 134,326.80, 201,622.23 and 102,440.34
Double scale
Find fourth proportional to 67,164.40, 100,812.62 and 51,221.17
Similar ratio
Find fourth proportional to 100,745.10, 151,216.67 and 76,830.26
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.