Finding the Fourth Proportional to 86,119.26, 118,846.62 and 47,879.97
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Solution
The fourth proportional to 86,119.26, 118,846.62 and 47,879.97 is: 66,075.49
Step by Step Solution
- Step 1: Write the proportion equation
86,119.26 : 118,846.62 = 47,879.97 : x - Step 2: Convert to fraction form
86,119.26/118,846.62 = 47,879.97/x - Step 3: Cross multiply
86,119.26x = 118,846.62 × 47,879.97 - Step 4: Simplify right side
86,119.26x = 5,690,372,600.20 - Step 5: Solve for x
x = 5,690,372,600.20/86,119.26 - Step 6: Final answer
x = 66,075.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.