Finding the Fourth Proportional to 75,761.98, 113,677.29 and 33,080.65
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Solution
The fourth proportional to 75,761.98, 113,677.29 and 33,080.65 is: 49,635.96
Step by Step Solution
- Step 1: Write the proportion equation
75,761.98 : 113,677.29 = 33,080.65 : x - Step 2: Convert to fraction form
75,761.98/113,677.29 = 33,080.65/x - Step 3: Cross multiply
75,761.98x = 113,677.29 × 33,080.65 - Step 4: Simplify right side
75,761.98x = 3,760,518,359.25 - Step 5: Solve for x
x = 3,760,518,359.25/75,761.98 - Step 6: Final answer
x = 49,635.96
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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.