Finding the Fourth Proportional to 54,902.88, 81,648 and 53,153.28
Calculator
Solution
The fourth proportional to 54,902.88, 81,648 and 53,153.28 is: 79,046.11
Step by Step Solution
- Step 1: Write the proportion equation
54,902.88 : 81,648 = 53,153.28 : x - Step 2: Convert to fraction form
54,902.88/81,648 = 53,153.28/x - Step 3: Cross multiply
54,902.88x = 81,648 × 53,153.28 - Step 4: Simplify right side
54,902.88x = 4,339,859,005.44 - Step 5: Solve for x
x = 4,339,859,005.44/54,902.88 - Step 6: Final answer
x = 79,046.11
Related Problems
Find fourth proportional to 27,451.44, 40,824 and 26,576.64
Half scale
Find fourth proportional to 109,805.76, 163,296 and 106,306.56
Double scale
Find fourth proportional to 54,903.88, 81,649.49 and 53,154.28
Similar ratio
Find fourth proportional to 82,354.32, 122,472 and 79,729.92
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.