Finding the Fourth Proportional to 76,964.88, 115,464.64 and 27,048.44
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Solution
The fourth proportional to 76,964.88, 115,464.64 and 27,048.44 is: 40,578.75
Step by Step Solution
- Step 1: Write the proportion equation
76,964.88 : 115,464.64 = 27,048.44 : x - Step 2: Convert to fraction form
76,964.88/115,464.64 = 27,048.44/x - Step 3: Cross multiply
76,964.88x = 115,464.64 × 27,048.44 - Step 4: Simplify right side
76,964.88x = 3,123,138,387.16 - Step 5: Solve for x
x = 3,123,138,387.16/76,964.88 - Step 6: Final answer
x = 40,578.75
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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.