Finding the Fourth Proportional to 75,105.14, 103,643.49 and 41,112.74
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Solution
The fourth proportional to 75,105.14, 103,643.49 and 41,112.74 is: 56,734.70
Step by Step Solution
- Step 1: Write the proportion equation
75,105.14 : 103,643.49 = 41,112.74 : x - Step 2: Convert to fraction form
75,105.14/103,643.49 = 41,112.74/x - Step 3: Cross multiply
75,105.14x = 103,643.49 × 41,112.74 - Step 4: Simplify right side
75,105.14x = 4,261,067,857.06 - Step 5: Solve for x
x = 4,261,067,857.06/75,105.14 - Step 6: Final answer
x = 56,734.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.