Finding the Fourth Proportional to 75,151.75, 112,735.10 and 27,779.26
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Solution
The fourth proportional to 75,151.75, 112,735.10 and 27,779.26 is: 41,671.65
Step by Step Solution
- Step 1: Write the proportion equation
75,151.75 : 112,735.10 = 27,779.26 : x - Step 2: Convert to fraction form
75,151.75/112,735.10 = 27,779.26/x - Step 3: Cross multiply
75,151.75x = 112,735.10 × 27,779.26 - Step 4: Simplify right side
75,151.75x = 3,131,697,654.03 - Step 5: Solve for x
x = 3,131,697,654.03/75,151.75 - Step 6: Final answer
x = 41,671.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.