Finding the Fourth Proportional to 57.99, 86.99 and 23.77
Calculator
Solution
The fourth proportional to 57.99, 86.99 and 23.77 is: 35.65
Step by Step Solution
- Step 1: Write the proportion equation
57.99 : 86.99 = 23.77 : x - Step 2: Convert to fraction form
57.99/86.99 = 23.77/x - Step 3: Cross multiply
57.99x = 86.99 × 23.77 - Step 4: Simplify right side
57.99x = 2,067.53 - Step 5: Solve for x
x = 2,067.53/57.99 - Step 6: Final answer
x = 35.65
Related Problems
Find fourth proportional to 28.99, 43.49 and 11.88
Half scale
Find fourth proportional to 115.98, 173.97 and 47.54
Double scale
Find fourth proportional to 58.99, 88.49 and 24.77
Similar ratio
Find fourth proportional to 86.98, 130.48 and 35.65
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.