Finding the Fourth Proportional to 79,715.84, 119,572.48 and 27,161.92
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Solution
The fourth proportional to 79,715.84, 119,572.48 and 27,161.92 is: 40,742.44
Step by Step Solution
- Step 1: Write the proportion equation
79,715.84 : 119,572.48 = 27,161.92 : x - Step 2: Convert to fraction form
79,715.84/119,572.48 = 27,161.92/x - Step 3: Cross multiply
79,715.84x = 119,572.48 × 27,161.92 - Step 4: Simplify right side
79,715.84x = 3,247,818,135.96 - Step 5: Solve for x
x = 3,247,818,135.96/79,715.84 - Step 6: Final answer
x = 40,742.44
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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.