Finding the Fourth Proportional to 79,776.64, 119,640.96 and 27,174.08
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Solution
The fourth proportional to 79,776.64, 119,640.96 and 27,174.08 is: 40,752.94
Step by Step Solution
- Step 1: Write the proportion equation
79,776.64 : 119,640.96 = 27,174.08 : x - Step 2: Convert to fraction form
79,776.64/119,640.96 = 27,174.08/x - Step 3: Cross multiply
79,776.64x = 119,640.96 × 27,174.08 - Step 4: Simplify right side
79,776.64x = 3,251,133,018.32 - Step 5: Solve for x
x = 3,251,133,018.32/79,776.64 - Step 6: Final answer
x = 40,752.94
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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.