Finding the Fourth Proportional to 80,483.76, 120,727.12 and 27,894.96
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Solution
The fourth proportional to 80,483.76, 120,727.12 and 27,894.96 is: 41,842.95
Step by Step Solution
- Step 1: Write the proportion equation
80,483.76 : 120,727.12 = 27,894.96 : x - Step 2: Convert to fraction form
80,483.76/120,727.12 = 27,894.96/x - Step 3: Cross multiply
80,483.76x = 120,727.12 × 27,894.96 - Step 4: Simplify right side
80,483.76x = 3,367,678,183.32 - Step 5: Solve for x
x = 3,367,678,183.32/80,483.76 - Step 6: Final answer
x = 41,842.95
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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.