Finding the Fourth Proportional to 87,672.09, 131,524.64 and 28,524.68
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Solution
The fourth proportional to 87,672.09, 131,524.64 and 28,524.68 is: 42,792.39
Step by Step Solution
- Step 1: Write the proportion equation
87,672.09 : 131,524.64 = 28,524.68 : x - Step 2: Convert to fraction form
87,672.09/131,524.64 = 28,524.68/x - Step 3: Cross multiply
87,672.09x = 131,524.64 × 28,524.68 - Step 4: Simplify right side
87,672.09x = 3,751,698,268.12 - Step 5: Solve for x
x = 3,751,698,268.12/87,672.09 - Step 6: Final answer
x = 42,792.39
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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.