Finding the Fourth Proportional to 73,174.08, 100,980.54 and 39,640.08
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Solution
The fourth proportional to 73,174.08, 100,980.54 and 39,640.08 is: 54,703.48
Step by Step Solution
- Step 1: Write the proportion equation
73,174.08 : 100,980.54 = 39,640.08 : x - Step 2: Convert to fraction form
73,174.08/100,980.54 = 39,640.08/x - Step 3: Cross multiply
73,174.08x = 100,980.54 × 39,640.08 - Step 4: Simplify right side
73,174.08x = 4,002,876,684.04 - Step 5: Solve for x
x = 4,002,876,684.04/73,174.08 - Step 6: Final answer
x = 54,703.48
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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.