Finding the Fourth Proportional to 87,832.26, 131,733.36 and 31,661.19
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Solution
The fourth proportional to 87,832.26, 131,733.36 and 31,661.19 is: 47,486.37
Step by Step Solution
- Step 1: Write the proportion equation
87,832.26 : 131,733.36 = 31,661.19 : x - Step 2: Convert to fraction form
87,832.26/131,733.36 = 31,661.19/x - Step 3: Cross multiply
87,832.26x = 131,733.36 × 31,661.19 - Step 4: Simplify right side
87,832.26x = 4,170,834,940.30 - Step 5: Solve for x
x = 4,170,834,940.30/87,832.26 - Step 6: Final answer
x = 47,486.37
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1.5x scale
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.