Finding the Fourth Proportional to 71,463.20, 107,160.18 and 21,533.99
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Solution
The fourth proportional to 71,463.20, 107,160.18 and 21,533.99 is: 32,290.55
Step by Step Solution
- Step 1: Write the proportion equation
71,463.20 : 107,160.18 = 21,533.99 : x - Step 2: Convert to fraction form
71,463.20/107,160.18 = 21,533.99/x - Step 3: Cross multiply
71,463.20x = 107,160.18 × 21,533.99 - Step 4: Simplify right side
71,463.20x = 2,307,586,244.52 - Step 5: Solve for x
x = 2,307,586,244.52/71,463.20 - Step 6: Final answer
x = 32,290.55
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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.