Finding the Fourth Proportional to 76,891.96, 115,396.14 and 51,872.68
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Solution
The fourth proportional to 76,891.96, 115,396.14 and 51,872.68 is: 77,848.28
Step by Step Solution
- Step 1: Write the proportion equation
76,891.96 : 115,396.14 = 51,872.68 : x - Step 2: Convert to fraction form
76,891.96/115,396.14 = 51,872.68/x - Step 3: Cross multiply
76,891.96x = 115,396.14 × 51,872.68 - Step 4: Simplify right side
76,891.96x = 5,985,907,043.46 - Step 5: Solve for x
x = 5,985,907,043.46/76,891.96 - Step 6: Final answer
x = 77,848.28
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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.