Finding the Fourth Proportional to 91,239.64, 136,729.14 and 41,195.44
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Solution
The fourth proportional to 91,239.64, 136,729.14 and 41,195.44 is: 61,734.32
Step by Step Solution
- Step 1: Write the proportion equation
91,239.64 : 136,729.14 = 41,195.44 : x - Step 2: Convert to fraction form
91,239.64/136,729.14 = 41,195.44/x - Step 3: Cross multiply
91,239.64x = 136,729.14 × 41,195.44 - Step 4: Simplify right side
91,239.64x = 5,632,617,083.12 - Step 5: Solve for x
x = 5,632,617,083.12/91,239.64 - Step 6: Final answer
x = 61,734.32
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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.