Finding the Fourth Proportional to 87,338.10, 131,034.84 and 31,176.99
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Solution
The fourth proportional to 87,338.10, 131,034.84 and 31,176.99 is: 46,775.37
Step by Step Solution
- Step 1: Write the proportion equation
87,338.10 : 131,034.84 = 31,176.99 : x - Step 2: Convert to fraction form
87,338.10/131,034.84 = 31,176.99/x - Step 3: Cross multiply
87,338.10x = 131,034.84 × 31,176.99 - Step 4: Simplify right side
87,338.10x = 4,085,271,896.33 - Step 5: Solve for x
x = 4,085,271,896.33/87,338.10 - Step 6: Final answer
x = 46,775.37
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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.