Finding the Fourth Proportional to 75,141.09, 103,690.26 and 41,149.44
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Solution
The fourth proportional to 75,141.09, 103,690.26 and 41,149.44 is: 56,783.79
Step by Step Solution
- Step 1: Write the proportion equation
75,141.09 : 103,690.26 = 41,149.44 : x - Step 2: Convert to fraction form
75,141.09/103,690.26 = 41,149.44/x - Step 3: Cross multiply
75,141.09x = 103,690.26 × 41,149.44 - Step 4: Simplify right side
75,141.09x = 4,266,796,132.45 - Step 5: Solve for x
x = 4,266,796,132.45/75,141.09 - Step 6: Final answer
x = 56,783.79
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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.