Finding the Fourth Proportional to 87,794.44, 131,434.62 and 54,413.80
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Solution
The fourth proportional to 87,794.44, 131,434.62 and 54,413.80 is: 81,461.39
Step by Step Solution
- Step 1: Write the proportion equation
87,794.44 : 131,434.62 = 54,413.80 : x - Step 2: Convert to fraction form
87,794.44/131,434.62 = 54,413.80/x - Step 3: Cross multiply
87,794.44x = 131,434.62 × 54,413.80 - Step 4: Simplify right side
87,794.44x = 7,151,857,125.76 - Step 5: Solve for x
x = 7,151,857,125.76/87,794.44 - Step 6: Final answer
x = 81,461.39
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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.