Finding the Fourth Proportional to 71,810.35, 107,715.57 and 34,361.62
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Solution
The fourth proportional to 71,810.35, 107,715.57 and 34,361.62 is: 51,542.45
Step by Step Solution
- Step 1: Write the proportion equation
71,810.35 : 107,715.57 = 34,361.62 : x - Step 2: Convert to fraction form
71,810.35/107,715.57 = 34,361.62/x - Step 3: Cross multiply
71,810.35x = 107,715.57 × 34,361.62 - Step 4: Simplify right side
71,810.35x = 3,701,281,484.42 - Step 5: Solve for x
x = 3,701,281,484.42/71,810.35 - Step 6: Final answer
x = 51,542.45
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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.