Finding the Fourth Proportional to 80,791.18, 121,201.21 and 27,480.44
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Solution
The fourth proportional to 80,791.18, 121,201.21 and 27,480.44 is: 41,225.57
Step by Step Solution
- Step 1: Write the proportion equation
80,791.18 : 121,201.21 = 27,480.44 : x - Step 2: Convert to fraction form
80,791.18/121,201.21 = 27,480.44/x - Step 3: Cross multiply
80,791.18x = 121,201.21 × 27,480.44 - Step 4: Simplify right side
80,791.18x = 3,330,662,234.93 - Step 5: Solve for x
x = 3,330,662,234.93/80,791.18 - Step 6: Final answer
x = 41,225.57
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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.