Finding the Fourth Proportional to 73,981.47, 102,095.18 and 39,990.62
Calculator
Solution
The fourth proportional to 73,981.47, 102,095.18 and 39,990.62 is: 55,187.45
Step by Step Solution
- Step 1: Write the proportion equation
73,981.47 : 102,095.18 = 39,990.62 : x - Step 2: Convert to fraction form
73,981.47/102,095.18 = 39,990.62/x - Step 3: Cross multiply
73,981.47x = 102,095.18 × 39,990.62 - Step 4: Simplify right side
73,981.47x = 4,082,848,836.78 - Step 5: Solve for x
x = 4,082,848,836.78/73,981.47 - Step 6: Final answer
x = 55,187.45
Related Problems
Find fourth proportional to 36,990.74, 51,047.59 and 19,995.31
Half scale
Find fourth proportional to 147,962.94, 204,190.35 and 79,981.23
Double scale
Find fourth proportional to 73,982.47, 102,096.56 and 39,991.62
Similar ratio
Find fourth proportional to 110,972.21, 153,142.76 and 59,985.92
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.