Finding the Fourth Proportional to 73,979.24, 102,091.76 and 40,445.24
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Solution
The fourth proportional to 73,979.24, 102,091.76 and 40,445.24 is: 55,814.65
Step by Step Solution
- Step 1: Write the proportion equation
73,979.24 : 102,091.76 = 40,445.24 : x - Step 2: Convert to fraction form
73,979.24/102,091.76 = 40,445.24/x - Step 3: Cross multiply
73,979.24x = 102,091.76 × 40,445.24 - Step 4: Simplify right side
73,979.24x = 4,129,125,735.22 - Step 5: Solve for x
x = 4,129,125,735.22/73,979.24 - Step 6: Final answer
x = 55,814.65
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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.