Finding the Fourth Proportional to 75,871.12, 104,702.15 and 41,879.62
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Solution
The fourth proportional to 75,871.12, 104,702.15 and 41,879.62 is: 57,793.88
Step by Step Solution
- Step 1: Write the proportion equation
75,871.12 : 104,702.15 = 41,879.62 : x - Step 2: Convert to fraction form
75,871.12/104,702.15 = 41,879.62/x - Step 3: Cross multiply
75,871.12x = 104,702.15 × 41,879.62 - Step 4: Simplify right side
75,871.12x = 4,384,886,098.13 - Step 5: Solve for x
x = 4,384,886,098.13/75,871.12 - Step 6: Final answer
x = 57,793.88
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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.