Finding the Fourth Proportional to 71,906.44, 107,864.26 and 21,988.32
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Solution
The fourth proportional to 71,906.44, 107,864.26 and 21,988.32 is: 32,983.89
Step by Step Solution
- Step 1: Write the proportion equation
71,906.44 : 107,864.26 = 21,988.32 : x - Step 2: Convert to fraction form
71,906.44/107,864.26 = 21,988.32/x - Step 3: Cross multiply
71,906.44x = 107,864.26 × 21,988.32 - Step 4: Simplify right side
71,906.44x = 2,371,753,865.44 - Step 5: Solve for x
x = 2,371,753,865.44/71,906.44 - Step 6: Final answer
x = 32,983.89
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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.