Finding the Fourth Proportional to 80,409.11, 110,891.93 and 50,197.21
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Solution
The fourth proportional to 80,409.11, 110,891.93 and 50,197.21 is: 69,226.80
Step by Step Solution
- Step 1: Write the proportion equation
80,409.11 : 110,891.93 = 50,197.21 : x - Step 2: Convert to fraction form
80,409.11/110,891.93 = 50,197.21/x - Step 3: Cross multiply
80,409.11x = 110,891.93 × 50,197.21 - Step 4: Simplify right side
80,409.11x = 5,566,464,969.30 - Step 5: Solve for x
x = 5,566,464,969.30/80,409.11 - Step 6: Final answer
x = 69,226.80
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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.