Finding the Fourth Proportional to 75,771.62, 104,562.82 and 41,779.53
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Solution
The fourth proportional to 75,771.62, 104,562.82 and 41,779.53 is: 57,654.64
Step by Step Solution
- Step 1: Write the proportion equation
75,771.62 : 104,562.82 = 41,779.53 : x - Step 2: Convert to fraction form
75,771.62/104,562.82 = 41,779.53/x - Step 3: Cross multiply
75,771.62x = 104,562.82 × 41,779.53 - Step 4: Simplify right side
75,771.62x = 4,368,585,135.19 - Step 5: Solve for x
x = 4,368,585,135.19/75,771.62 - Step 6: Final answer
x = 57,654.64
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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.