Finding the Fourth Proportional to 87,630.08, 131,523.20 and 40,909.44
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Solution
The fourth proportional to 87,630.08, 131,523.20 and 40,909.44 is: 61,400.61
Step by Step Solution
- Step 1: Write the proportion equation
87,630.08 : 131,523.20 = 40,909.44 : x - Step 2: Convert to fraction form
87,630.08/131,523.20 = 40,909.44/x - Step 3: Cross multiply
87,630.08x = 131,523.20 × 40,909.44 - Step 4: Simplify right side
87,630.08x = 5,380,540,459.01 - Step 5: Solve for x
x = 5,380,540,459.01/87,630.08 - Step 6: Final answer
x = 61,400.61
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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.