Finding the Fourth Proportional to 75,415.75, 104,073.75 and 41,881.75
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Solution
The fourth proportional to 75,415.75, 104,073.75 and 41,881.75 is: 57,796.82
Step by Step Solution
- Step 1: Write the proportion equation
75,415.75 : 104,073.75 = 41,881.75 : x - Step 2: Convert to fraction form
75,415.75/104,073.75 = 41,881.75/x - Step 3: Cross multiply
75,415.75x = 104,073.75 × 41,881.75 - Step 4: Simplify right side
75,415.75x = 4,358,790,779.06 - Step 5: Solve for x
x = 4,358,790,779.06/75,415.75 - Step 6: Final answer
x = 57,796.82
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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.