Finding the Fourth Proportional to 87,671.09, 131,523.14 and 28,523.68
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Solution
The fourth proportional to 87,671.09, 131,523.14 and 28,523.68 is: 42,790.89
Step by Step Solution
- Step 1: Write the proportion equation
87,671.09 : 131,523.14 = 28,523.68 : x - Step 2: Convert to fraction form
87,671.09/131,523.14 = 28,523.68/x - Step 3: Cross multiply
87,671.09x = 131,523.14 × 28,523.68 - Step 4: Simplify right side
87,671.09x = 3,751,523,700.46 - Step 5: Solve for x
x = 3,751,523,700.46/87,671.09 - Step 6: Final answer
x = 42,790.89
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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.