Finding the Fourth Proportional to 80,348.96, 120,534.48 and 27,045.09
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Solution
The fourth proportional to 80,348.96, 120,534.48 and 27,045.09 is: 40,571.35
Step by Step Solution
- Step 1: Write the proportion equation
80,348.96 : 120,534.48 = 27,045.09 : x - Step 2: Convert to fraction form
80,348.96/120,534.48 = 27,045.09/x - Step 3: Cross multiply
80,348.96x = 120,534.48 × 27,045.09 - Step 4: Simplify right side
80,348.96x = 3,259,865,859.70 - Step 5: Solve for x
x = 3,259,865,859.70/80,348.96 - Step 6: Final answer
x = 40,571.35
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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.