Finding the Fourth Proportional to 81,480.96, 122,175.36 and 48,205.44
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Solution
The fourth proportional to 81,480.96, 122,175.36 and 48,205.44 is: 72,280.90
Step by Step Solution
- Step 1: Write the proportion equation
81,480.96 : 122,175.36 = 48,205.44 : x - Step 2: Convert to fraction form
81,480.96/122,175.36 = 48,205.44/x - Step 3: Cross multiply
81,480.96x = 122,175.36 × 48,205.44 - Step 4: Simplify right side
81,480.96x = 5,889,516,985.96 - Step 5: Solve for x
x = 5,889,516,985.96/81,480.96 - Step 6: Final answer
x = 72,280.90
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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.