Finding the Fourth Proportional to 75,132.05, 112,755.20 and 27,791.91
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Solution
The fourth proportional to 75,132.05, 112,755.20 and 27,791.91 is: 41,709.00
Step by Step Solution
- Step 1: Write the proportion equation
75,132.05 : 112,755.20 = 27,791.91 : x - Step 2: Convert to fraction form
75,132.05/112,755.20 = 27,791.91/x - Step 3: Cross multiply
75,132.05x = 112,755.20 × 27,791.91 - Step 4: Simplify right side
75,132.05x = 3,133,682,231.47 - Step 5: Solve for x
x = 3,133,682,231.47/75,132.05 - Step 6: Final answer
x = 41,709.00
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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.