Finding the Fourth Proportional to 73,872.30, 110,747.70 and 31,784.70
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Solution
The fourth proportional to 73,872.30, 110,747.70 and 31,784.70 is: 47,650.91
Step by Step Solution
- Step 1: Write the proportion equation
73,872.30 : 110,747.70 = 31,784.70 : x - Step 2: Convert to fraction form
73,872.30/110,747.70 = 31,784.70/x - Step 3: Cross multiply
73,872.30x = 110,747.70 × 31,784.70 - Step 4: Simplify right side
73,872.30x = 3,520,082,420.19 - Step 5: Solve for x
x = 3,520,082,420.19/73,872.30 - Step 6: Final answer
x = 47,650.91
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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.