Finding the Fourth Proportional to 80,361.28, 120,570.84 and 27,776.08
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Solution
The fourth proportional to 80,361.28, 120,570.84 and 27,776.08 is: 41,674.12
Step by Step Solution
- Step 1: Write the proportion equation
80,361.28 : 120,570.84 = 27,776.08 : x - Step 2: Convert to fraction form
80,361.28/120,570.84 = 27,776.08/x - Step 3: Cross multiply
80,361.28x = 120,570.84 × 27,776.08 - Step 4: Simplify right side
80,361.28x = 3,348,985,297.51 - Step 5: Solve for x
x = 3,348,985,297.51/80,361.28 - Step 6: Final answer
x = 41,674.12
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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.