Finding the Fourth Proportional to 82,756.60, 124,134.90 and 53,207.80
Calculator
Solution
The fourth proportional to 82,756.60, 124,134.90 and 53,207.80 is: 79,811.70
Step by Step Solution
- Step 1: Write the proportion equation
82,756.60 : 124,134.90 = 53,207.80 : x - Step 2: Convert to fraction form
82,756.60/124,134.90 = 53,207.80/x - Step 3: Cross multiply
82,756.60x = 124,134.90 × 53,207.80 - Step 4: Simplify right side
82,756.60x = 6,604,944,932.22 - Step 5: Solve for x
x = 6,604,944,932.22/82,756.60 - Step 6: Final answer
x = 79,811.70
Related Problems
Find fourth proportional to 41,378.30, 62,067.45 and 26,603.90
Half scale
Find fourth proportional to 165,513.20, 248,269.80 and 106,415.60
Double scale
Find fourth proportional to 82,757.60, 124,136.40 and 53,208.80
Similar ratio
Find fourth proportional to 124,134.90, 186,202.35 and 79,811.70
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.