Finding the Fourth Proportional to 78,796.26, 118,194.84 and 19,631.94
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Solution
The fourth proportional to 78,796.26, 118,194.84 and 19,631.94 is: 29,448.02
Step by Step Solution
- Step 1: Write the proportion equation
78,796.26 : 118,194.84 = 19,631.94 : x - Step 2: Convert to fraction form
78,796.26/118,194.84 = 19,631.94/x - Step 3: Cross multiply
78,796.26x = 118,194.84 × 19,631.94 - Step 4: Simplify right side
78,796.26x = 2,320,394,007.19 - Step 5: Solve for x
x = 2,320,394,007.19/78,796.26 - Step 6: Final answer
x = 29,448.02
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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.