Finding the Fourth Proportional to 76,166.09, 114,174.56 and 31,805.53
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Solution
The fourth proportional to 76,166.09, 114,174.56 and 31,805.53 is: 47,677.15
Step by Step Solution
- Step 1: Write the proportion equation
76,166.09 : 114,174.56 = 31,805.53 : x - Step 2: Convert to fraction form
76,166.09/114,174.56 = 31,805.53/x - Step 3: Cross multiply
76,166.09x = 114,174.56 × 31,805.53 - Step 4: Simplify right side
76,166.09x = 3,631,382,035.63 - Step 5: Solve for x
x = 3,631,382,035.63/76,166.09 - Step 6: Final answer
x = 47,677.15
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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.