Finding the Fourth Proportional to 80,115.36, 120,108.24 and 48,940.08
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Solution
The fourth proportional to 80,115.36, 120,108.24 and 48,940.08 is: 73,370.54
Step by Step Solution
- Step 1: Write the proportion equation
80,115.36 : 120,108.24 = 48,940.08 : x - Step 2: Convert to fraction form
80,115.36/120,108.24 = 48,940.08/x - Step 3: Cross multiply
80,115.36x = 120,108.24 × 48,940.08 - Step 4: Simplify right side
80,115.36x = 5,878,106,874.26 - Step 5: Solve for x
x = 5,878,106,874.26/80,115.36 - Step 6: Final answer
x = 73,370.54
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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.