Finding the Fourth Proportional to 79,647.09, 119,544.48 and 40,231.86
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Solution
The fourth proportional to 79,647.09, 119,544.48 and 40,231.86 is: 60,385.09
Step by Step Solution
- Step 1: Write the proportion equation
79,647.09 : 119,544.48 = 40,231.86 : x - Step 2: Convert to fraction form
79,647.09/119,544.48 = 40,231.86/x - Step 3: Cross multiply
79,647.09x = 119,544.48 × 40,231.86 - Step 4: Simplify right side
79,647.09x = 4,809,496,783.13 - Step 5: Solve for x
x = 4,809,496,783.13/79,647.09 - Step 6: Final answer
x = 60,385.09
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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.