Finding the Fourth Proportional to 74,144.20, 111,163.47 and 34,679.80
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Solution
The fourth proportional to 74,144.20, 111,163.47 and 34,679.80 is: 51,994.99
Step by Step Solution
- Step 1: Write the proportion equation
74,144.20 : 111,163.47 = 34,679.80 : x - Step 2: Convert to fraction form
74,144.20/111,163.47 = 34,679.80/x - Step 3: Cross multiply
74,144.20x = 111,163.47 × 34,679.80 - Step 4: Simplify right side
74,144.20x = 3,855,126,906.91 - Step 5: Solve for x
x = 3,855,126,906.91/74,144.20 - Step 6: Final answer
x = 51,994.99
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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.