Finding the Fourth Proportional to 85,201.25, 117,578.21 and 49,412.52
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Solution
The fourth proportional to 85,201.25, 117,578.21 and 49,412.52 is: 68,189.56
Step by Step Solution
- Step 1: Write the proportion equation
85,201.25 : 117,578.21 = 49,412.52 : x - Step 2: Convert to fraction form
85,201.25/117,578.21 = 49,412.52/x - Step 3: Cross multiply
85,201.25x = 117,578.21 × 49,412.52 - Step 4: Simplify right side
85,201.25x = 5,809,835,406.13 - Step 5: Solve for x
x = 5,809,835,406.13/85,201.25 - Step 6: Final answer
x = 68,189.56
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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.