Finding the Fourth Proportional to 75,217.26, 103,799.80 and 41,689.74
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Solution
The fourth proportional to 75,217.26, 103,799.80 and 41,689.74 is: 57,531.83
Step by Step Solution
- Step 1: Write the proportion equation
75,217.26 : 103,799.80 = 41,689.74 : x - Step 2: Convert to fraction form
75,217.26/103,799.80 = 41,689.74/x - Step 3: Cross multiply
75,217.26x = 103,799.80 × 41,689.74 - Step 4: Simplify right side
75,217.26x = 4,327,386,674.05 - Step 5: Solve for x
x = 4,327,386,674.05/75,217.26 - Step 6: Final answer
x = 57,531.83
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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.