Finding the Fourth Proportional to 81,899.08, 122,843.62 and 48,183.76
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Solution
The fourth proportional to 81,899.08, 122,843.62 and 48,183.76 is: 72,272.70
Step by Step Solution
- Step 1: Write the proportion equation
81,899.08 : 122,843.62 = 48,183.76 : x - Step 2: Convert to fraction form
81,899.08/122,843.62 = 48,183.76/x - Step 3: Cross multiply
81,899.08x = 122,843.62 × 48,183.76 - Step 4: Simplify right side
81,899.08x = 5,919,067,503.61 - Step 5: Solve for x
x = 5,919,067,503.61/81,899.08 - Step 6: Final answer
x = 72,272.70
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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.