Finding the Fourth Proportional to 81,481.96, 122,176.86 and 48,206.44
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Solution
The fourth proportional to 81,481.96, 122,176.86 and 48,206.44 is: 72,282.40
Step by Step Solution
- Step 1: Write the proportion equation
81,481.96 : 122,176.86 = 48,206.44 : x - Step 2: Convert to fraction form
81,481.96/122,176.86 = 48,206.44/x - Step 3: Cross multiply
81,481.96x = 122,176.86 × 48,206.44 - Step 4: Simplify right side
81,481.96x = 5,889,711,470.98 - Step 5: Solve for x
x = 5,889,711,470.98/81,481.96 - Step 6: Final answer
x = 72,282.40
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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.