Finding the Fourth Proportional to 79,640.82, 119,463.66 and 20,475.99
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Solution
The fourth proportional to 79,640.82, 119,463.66 and 20,475.99 is: 30,714.61
Step by Step Solution
- Step 1: Write the proportion equation
79,640.82 : 119,463.66 = 20,475.99 : x - Step 2: Convert to fraction form
79,640.82/119,463.66 = 20,475.99/x - Step 3: Cross multiply
79,640.82x = 119,463.66 × 20,475.99 - Step 4: Simplify right side
79,640.82x = 2,446,136,707.52 - Step 5: Solve for x
x = 2,446,136,707.52/79,640.82 - Step 6: Final answer
x = 30,714.61
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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.