Finding the Fourth Proportional to 48.69, 67.23 and 45.99
Calculator
Solution
The fourth proportional to 48.69, 67.23 and 45.99 is: 63.50
Step by Step Solution
- Step 1: Write the proportion equation
48.69 : 67.23 = 45.99 : x - Step 2: Convert to fraction form
48.69/67.23 = 45.99/x - Step 3: Cross multiply
48.69x = 67.23 × 45.99 - Step 4: Simplify right side
48.69x = 3,091.91 - Step 5: Solve for x
x = 3,091.91/48.69 - Step 6: Final answer
x = 63.50
Related Problems
Find fourth proportional to 24.35, 33.62 and 23.00
Half scale
Find fourth proportional to 97.38, 134.46 and 91.98
Double scale
Find fourth proportional to 49.69, 68.61 and 46.99
Similar ratio
Find fourth proportional to 73.04, 100.85 and 68.99
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.