Finding the Fourth Proportional to 91,129.92, 136,679.11 and 41,198.41
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Solution
The fourth proportional to 91,129.92, 136,679.11 and 41,198.41 is: 61,790.49
Step by Step Solution
- Step 1: Write the proportion equation
91,129.92 : 136,679.11 = 41,198.41 : x - Step 2: Convert to fraction form
91,129.92/136,679.11 = 41,198.41/x - Step 3: Cross multiply
91,129.92x = 136,679.11 × 41,198.41 - Step 4: Simplify right side
91,129.92x = 5,630,962,012.22 - Step 5: Solve for x
x = 5,630,962,012.22/91,129.92 - Step 6: Final answer
x = 61,790.49
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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.