Finding the Fourth Proportional to 71,483.94, 107,229.69 and 18,891.99
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Solution
The fourth proportional to 71,483.94, 107,229.69 and 18,891.99 is: 28,338.98
Step by Step Solution
- Step 1: Write the proportion equation
71,483.94 : 107,229.69 = 18,891.99 : x - Step 2: Convert to fraction form
71,483.94/107,229.69 = 18,891.99/x - Step 3: Cross multiply
71,483.94x = 107,229.69 × 18,891.99 - Step 4: Simplify right side
71,483.94x = 2,025,782,231.18 - Step 5: Solve for x
x = 2,025,782,231.18/71,483.94 - Step 6: Final answer
x = 28,338.98
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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.