Finding the Fourth Proportional to 75,678.62, 104,436.52 and 43,865.96
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Solution
The fourth proportional to 75,678.62, 104,436.52 and 43,865.96 is: 60,535.03
Step by Step Solution
- Step 1: Write the proportion equation
75,678.62 : 104,436.52 = 43,865.96 : x - Step 2: Convert to fraction form
75,678.62/104,436.52 = 43,865.96/x - Step 3: Cross multiply
75,678.62x = 104,436.52 × 43,865.96 - Step 4: Simplify right side
75,678.62x = 4,581,207,577.01 - Step 5: Solve for x
x = 4,581,207,577.01/75,678.62 - Step 6: Final answer
x = 60,535.03
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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.