Finding the Fourth Proportional to 76,230.23, 114,324.69 and 31,847.70
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Solution
The fourth proportional to 76,230.23, 114,324.69 and 31,847.70 is: 47,762.92
Step by Step Solution
- Step 1: Write the proportion equation
76,230.23 : 114,324.69 = 31,847.70 : x - Step 2: Convert to fraction form
76,230.23/114,324.69 = 31,847.70/x - Step 3: Cross multiply
76,230.23x = 114,324.69 × 31,847.70 - Step 4: Simplify right side
76,230.23x = 3,640,978,549.14 - Step 5: Solve for x
x = 3,640,978,549.14/76,230.23 - Step 6: Final answer
x = 47,762.92
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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.