Finding the Fourth Proportional to 77,107.87, 115,662.62 and 27,178.66
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Solution
The fourth proportional to 77,107.87, 115,662.62 and 27,178.66 is: 40,768.28
Step by Step Solution
- Step 1: Write the proportion equation
77,107.87 : 115,662.62 = 27,178.66 : x - Step 2: Convert to fraction form
77,107.87/115,662.62 = 27,178.66/x - Step 3: Cross multiply
77,107.87x = 115,662.62 × 27,178.66 - Step 4: Simplify right side
77,107.87x = 3,143,554,887.80 - Step 5: Solve for x
x = 3,143,554,887.80/77,107.87 - Step 6: Final answer
x = 40,768.28
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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.