Finding the Fourth Proportional to 91,039.66, 125,635.26 and 50,755.96
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Solution
The fourth proportional to 91,039.66, 125,635.26 and 50,755.96 is: 70,043.52
Step by Step Solution
- Step 1: Write the proportion equation
91,039.66 : 125,635.26 = 50,755.96 : x - Step 2: Convert to fraction form
91,039.66/125,635.26 = 50,755.96/x - Step 3: Cross multiply
91,039.66x = 125,635.26 × 50,755.96 - Step 4: Simplify right side
91,039.66x = 6,376,738,231.15 - Step 5: Solve for x
x = 6,376,738,231.15/91,039.66 - Step 6: Final answer
x = 70,043.52
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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.