Finding the Fourth Proportional to 75,920.97, 113,782.68 and 30,889.85
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Solution
The fourth proportional to 75,920.97, 113,782.68 and 30,889.85 is: 46,294.58
Step by Step Solution
- Step 1: Write the proportion equation
75,920.97 : 113,782.68 = 30,889.85 : x - Step 2: Convert to fraction form
75,920.97/113,782.68 = 30,889.85/x - Step 3: Cross multiply
75,920.97x = 113,782.68 × 30,889.85 - Step 4: Simplify right side
75,920.97x = 3,514,729,755.78 - Step 5: Solve for x
x = 3,514,729,755.78/75,920.97 - Step 6: Final answer
x = 46,294.58
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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.