Finding the Fourth Proportional to 88,389.25, 121,974.82 and 48,102.14
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Solution
The fourth proportional to 88,389.25, 121,974.82 and 48,102.14 is: 66,379.69
Step by Step Solution
- Step 1: Write the proportion equation
88,389.25 : 121,974.82 = 48,102.14 : x - Step 2: Convert to fraction form
88,389.25/121,974.82 = 48,102.14/x - Step 3: Cross multiply
88,389.25x = 121,974.82 × 48,102.14 - Step 4: Simplify right side
88,389.25x = 5,867,250,375.31 - Step 5: Solve for x
x = 5,867,250,375.31/88,389.25 - Step 6: Final answer
x = 66,379.69
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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.