Finding the Fourth Proportional to 71,936.62, 107,925.99 and 36,900.70
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Solution
The fourth proportional to 71,936.62, 107,925.99 and 36,900.70 is: 55,361.85
Step by Step Solution
- Step 1: Write the proportion equation
71,936.62 : 107,925.99 = 36,900.70 : x - Step 2: Convert to fraction form
71,936.62/107,925.99 = 36,900.70/x - Step 3: Cross multiply
71,936.62x = 107,925.99 × 36,900.70 - Step 4: Simplify right side
71,936.62x = 3,982,544,579.19 - Step 5: Solve for x
x = 3,982,544,579.19/71,936.62 - Step 6: Final answer
x = 55,361.85
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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.