Finding the Fourth Proportional to 75,813.18, 104,620.51 and 41,821.70
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Solution
The fourth proportional to 75,813.18, 104,620.51 and 41,821.70 is: 57,713.02
Step by Step Solution
- Step 1: Write the proportion equation
75,813.18 : 104,620.51 = 41,821.70 : x - Step 2: Convert to fraction form
75,813.18/104,620.51 = 41,821.70/x - Step 3: Cross multiply
75,813.18x = 104,620.51 × 41,821.70 - Step 4: Simplify right side
75,813.18x = 4,375,407,229.87 - Step 5: Solve for x
x = 4,375,407,229.87/75,813.18 - Step 6: Final answer
x = 57,713.02
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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.