Finding the Fourth Proportional to 71,839.46, 107,759.21 and 29,673.19
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Solution
The fourth proportional to 71,839.46, 107,759.21 and 29,673.19 is: 44,509.80
Step by Step Solution
- Step 1: Write the proportion equation
71,839.46 : 107,759.21 = 29,673.19 : x - Step 2: Convert to fraction form
71,839.46/107,759.21 = 29,673.19/x - Step 3: Cross multiply
71,839.46x = 107,759.21 × 29,673.19 - Step 4: Simplify right side
71,839.46x = 3,197,559,968.90 - Step 5: Solve for x
x = 3,197,559,968.90/71,839.46 - Step 6: Final answer
x = 44,509.80
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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.