Finding the Fourth Proportional to 74,198.36, 111,301.36 and 21,611.92
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Solution
The fourth proportional to 74,198.36, 111,301.36 and 21,611.92 is: 32,418.99
Step by Step Solution
- Step 1: Write the proportion equation
74,198.36 : 111,301.36 = 21,611.92 : x - Step 2: Convert to fraction form
74,198.36/111,301.36 = 21,611.92/x - Step 3: Cross multiply
74,198.36x = 111,301.36 × 21,611.92 - Step 4: Simplify right side
74,198.36x = 2,405,436,088.21 - Step 5: Solve for x
x = 2,405,436,088.21/74,198.36 - Step 6: Final answer
x = 32,418.99
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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.