Finding the Fourth Proportional to 79,986.96, 119,979.83 and 33,239.84
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Solution
The fourth proportional to 79,986.96, 119,979.83 and 33,239.84 is: 49,859.50
Step by Step Solution
- Step 1: Write the proportion equation
79,986.96 : 119,979.83 = 33,239.84 : x - Step 2: Convert to fraction form
79,986.96/119,979.83 = 33,239.84/x - Step 3: Cross multiply
79,986.96x = 119,979.83 × 33,239.84 - Step 4: Simplify right side
79,986.96x = 3,988,109,835.63 - Step 5: Solve for x
x = 3,988,109,835.63/79,986.96 - Step 6: Final answer
x = 49,859.50
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1.5x scale
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.