Finding the Fourth Proportional to 76,874.55, 115,243.49 and 41,354.94
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Solution
The fourth proportional to 76,874.55, 115,243.49 and 41,354.94 is: 61,995.65
Step by Step Solution
- Step 1: Write the proportion equation
76,874.55 : 115,243.49 = 41,354.94 : x - Step 2: Convert to fraction form
76,874.55/115,243.49 = 41,354.94/x - Step 3: Cross multiply
76,874.55x = 115,243.49 × 41,354.94 - Step 4: Simplify right side
76,874.55x = 4,765,887,407.57 - Step 5: Solve for x
x = 4,765,887,407.57/76,874.55 - Step 6: Final answer
x = 61,995.65
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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.