Finding the Fourth Proportional to 77,174.91, 115,956.09 and 49,107.15
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Solution
The fourth proportional to 77,174.91, 115,956.09 and 49,107.15 is: 73,783.99
Step by Step Solution
- Step 1: Write the proportion equation
77,174.91 : 115,956.09 = 49,107.15 : x - Step 2: Convert to fraction form
77,174.91/115,956.09 = 49,107.15/x - Step 3: Cross multiply
77,174.91x = 115,956.09 × 49,107.15 - Step 4: Simplify right side
77,174.91x = 5,694,273,105.04 - Step 5: Solve for x
x = 5,694,273,105.04/77,174.91 - Step 6: Final answer
x = 73,783.99
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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.