Finding the Fourth Proportional to 76,949.62, 106,234.64 and 58,656.72
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Solution
The fourth proportional to 76,949.62, 106,234.64 and 58,656.72 is: 80,979.94
Step by Step Solution
- Step 1: Write the proportion equation
76,949.62 : 106,234.64 = 58,656.72 : x - Step 2: Convert to fraction form
76,949.62/106,234.64 = 58,656.72/x - Step 3: Cross multiply
76,949.62x = 106,234.64 × 58,656.72 - Step 4: Simplify right side
76,949.62x = 6,231,375,532.78 - Step 5: Solve for x
x = 6,231,375,532.78/76,949.62 - Step 6: Final answer
x = 80,979.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.