Finding the Fourth Proportional to 80,005.12, 110,391.84 and 48,176.08
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Solution
The fourth proportional to 80,005.12, 110,391.84 and 48,176.08 is: 66,473.82
Step by Step Solution
- Step 1: Write the proportion equation
80,005.12 : 110,391.84 = 48,176.08 : x - Step 2: Convert to fraction form
80,005.12/110,391.84 = 48,176.08/x - Step 3: Cross multiply
80,005.12x = 110,391.84 × 48,176.08 - Step 4: Simplify right side
80,005.12x = 5,318,246,115.19 - Step 5: Solve for x
x = 5,318,246,115.19/80,005.12 - Step 6: Final answer
x = 66,473.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.