Finding the Fourth Proportional to 62.26, 86.52 and 61.50
Calculator
Solution
The fourth proportional to 62.26, 86.52 and 61.50 is: 85.45
Step by Step Solution
- Step 1: Write the proportion equation
62.26 : 86.52 = 61.50 : x - Step 2: Convert to fraction form
62.26/86.52 = 61.50/x - Step 3: Cross multiply
62.26x = 86.52 × 61.50 - Step 4: Simplify right side
62.26x = 5,320.24 - Step 5: Solve for x
x = 5,320.24/62.26 - Step 6: Final answer
x = 85.45
Related Problems
Find fourth proportional to 31.13, 43.26 and 30.75
Half scale
Find fourth proportional to 124.52, 173.03 and 122.99
Double scale
Find fourth proportional to 63.26, 87.90 and 62.50
Similar ratio
Find fourth proportional to 93.39, 129.77 and 92.24
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.