Finding the Fourth Proportional to 71,204.23, 106,812.42 and 18,613.63
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Solution
The fourth proportional to 71,204.23, 106,812.42 and 18,613.63 is: 27,922.03
Step by Step Solution
- Step 1: Write the proportion equation
71,204.23 : 106,812.42 = 18,613.63 : x - Step 2: Convert to fraction form
71,204.23/106,812.42 = 18,613.63/x - Step 3: Cross multiply
71,204.23x = 106,812.42 × 18,613.63 - Step 4: Simplify right side
71,204.23x = 1,988,166,238.15 - Step 5: Solve for x
x = 1,988,166,238.15/71,204.23 - Step 6: Final answer
x = 27,922.03
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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.