Finding the Fourth Proportional to 71,723.84, 107,511.66 and 27,338.68
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Solution
The fourth proportional to 71,723.84, 107,511.66 and 27,338.68 is: 40,979.78
Step by Step Solution
- Step 1: Write the proportion equation
71,723.84 : 107,511.66 = 27,338.68 : x - Step 2: Convert to fraction form
71,723.84/107,511.66 = 27,338.68/x - Step 3: Cross multiply
71,723.84x = 107,511.66 × 27,338.68 - Step 4: Simplify right side
71,723.84x = 2,939,226,869.01 - Step 5: Solve for x
x = 2,939,226,869.01/71,723.84 - Step 6: Final answer
x = 40,979.78
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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.