Finding the Fourth Proportional to 81,504.96, 122,211.36 and 48,229.44
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Solution
The fourth proportional to 81,504.96, 122,211.36 and 48,229.44 is: 72,316.89
Step by Step Solution
- Step 1: Write the proportion equation
81,504.96 : 122,211.36 = 48,229.44 : x - Step 2: Convert to fraction form
81,504.96/122,211.36 = 48,229.44/x - Step 3: Cross multiply
81,504.96x = 122,211.36 × 48,229.44 - Step 4: Simplify right side
81,504.96x = 5,894,185,454.44 - Step 5: Solve for x
x = 5,894,185,454.44/81,504.96 - Step 6: Final answer
x = 72,316.89
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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.