Finding the Fourth Proportional to 79,771.92, 119,678.64 and 29,855.94
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Solution
The fourth proportional to 79,771.92, 119,678.64 and 29,855.94 is: 44,791.68
Step by Step Solution
- Step 1: Write the proportion equation
79,771.92 : 119,678.64 = 29,855.94 : x - Step 2: Convert to fraction form
79,771.92/119,678.64 = 29,855.94/x - Step 3: Cross multiply
79,771.92x = 119,678.64 × 29,855.94 - Step 4: Simplify right side
79,771.92x = 3,573,118,145.84 - Step 5: Solve for x
x = 3,573,118,145.84/79,771.92 - Step 6: Final answer
x = 44,791.68
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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.