Finding the Fourth Proportional to 75,963.42, 104,690.31 and 50,424.66
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Solution
The fourth proportional to 75,963.42, 104,690.31 and 50,424.66 is: 69,493.62
Step by Step Solution
- Step 1: Write the proportion equation
75,963.42 : 104,690.31 = 50,424.66 : x - Step 2: Convert to fraction form
75,963.42/104,690.31 = 50,424.66/x - Step 3: Cross multiply
75,963.42x = 104,690.31 × 50,424.66 - Step 4: Simplify right side
75,963.42x = 5,278,973,287.04 - Step 5: Solve for x
x = 5,278,973,287.04/75,963.42 - Step 6: Final answer
x = 69,493.62
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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.