Finding the Fourth Proportional to 72,861.84, 109,198.08 and 32,851.44
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Solution
The fourth proportional to 72,861.84, 109,198.08 and 32,851.44 is: 49,234.47
Step by Step Solution
- Step 1: Write the proportion equation
72,861.84 : 109,198.08 = 32,851.44 : x - Step 2: Convert to fraction form
72,861.84/109,198.08 = 32,851.44/x - Step 3: Cross multiply
72,861.84x = 109,198.08 × 32,851.44 - Step 4: Simplify right side
72,861.84x = 3,587,314,173.24 - Step 5: Solve for x
x = 3,587,314,173.24/72,861.84 - Step 6: Final answer
x = 49,234.47
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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.