Finding the Fourth Proportional to 91,063.20, 125,687.34 and 59,176.68
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Solution
The fourth proportional to 91,063.20, 125,687.34 and 59,176.68 is: 81,676.90
Step by Step Solution
- Step 1: Write the proportion equation
91,063.20 : 125,687.34 = 59,176.68 : x - Step 2: Convert to fraction form
91,063.20/125,687.34 = 59,176.68/x - Step 3: Cross multiply
91,063.20x = 125,687.34 × 59,176.68 - Step 4: Simplify right side
91,063.20x = 7,437,759,499.23 - Step 5: Solve for x
x = 7,437,759,499.23/91,063.20 - Step 6: Final answer
x = 81,676.90
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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.