Finding the Fourth Proportional to 68,879.20, 103,232.70 and 29,390.20
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Solution
The fourth proportional to 68,879.20, 103,232.70 and 29,390.20 is: 44,048.56
Step by Step Solution
- Step 1: Write the proportion equation
68,879.20 : 103,232.70 = 29,390.20 : x - Step 2: Convert to fraction form
68,879.20/103,232.70 = 29,390.20/x - Step 3: Cross multiply
68,879.20x = 103,232.70 × 29,390.20 - Step 4: Simplify right side
68,879.20x = 3,034,029,699.54 - Step 5: Solve for x
x = 3,034,029,699.54/68,879.20 - Step 6: Final answer
x = 44,048.56
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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.