Finding the Fourth Proportional to 71,546.68, 107,307.78 and 18,961.48
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Solution
The fourth proportional to 71,546.68, 107,307.78 and 18,961.48 is: 28,438.98
Step by Step Solution
- Step 1: Write the proportion equation
71,546.68 : 107,307.78 = 18,961.48 : x - Step 2: Convert to fraction form
71,546.68/107,307.78 = 18,961.48/x - Step 3: Cross multiply
71,546.68x = 107,307.78 × 18,961.48 - Step 4: Simplify right side
71,546.68x = 2,034,714,324.31 - Step 5: Solve for x
x = 2,034,714,324.31/71,546.68 - Step 6: Final answer
x = 28,438.98
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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.