Finding the Fourth Proportional to 91,918.98, 137,890.35 and 32,771.70
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Solution
The fourth proportional to 91,918.98, 137,890.35 and 32,771.70 is: 49,161.79
Step by Step Solution
- Step 1: Write the proportion equation
91,918.98 : 137,890.35 = 32,771.70 : x - Step 2: Convert to fraction form
91,918.98/137,890.35 = 32,771.70/x - Step 3: Cross multiply
91,918.98x = 137,890.35 × 32,771.70 - Step 4: Simplify right side
91,918.98x = 4,518,901,183.10 - Step 5: Solve for x
x = 4,518,901,183.10/91,918.98 - Step 6: Final answer
x = 49,161.79
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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.