Finding the Fourth Proportional to 71,459.21, 107,178.90 and 50,047.07
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Solution
The fourth proportional to 71,459.21, 107,178.90 and 50,047.07 is: 75,063.65
Step by Step Solution
- Step 1: Write the proportion equation
71,459.21 : 107,178.90 = 50,047.07 : x - Step 2: Convert to fraction form
71,459.21/107,178.90 = 50,047.07/x - Step 3: Cross multiply
71,459.21x = 107,178.90 × 50,047.07 - Step 4: Simplify right side
71,459.21x = 5,363,989,187.25 - Step 5: Solve for x
x = 5,363,989,187.25/71,459.21 - Step 6: Final answer
x = 75,063.65
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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.