Finding the Fourth Proportional to 73,708.74, 101,720.88 and 40,174.74
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Solution
The fourth proportional to 73,708.74, 101,720.88 and 40,174.74 is: 55,442.68
Step by Step Solution
- Step 1: Write the proportion equation
73,708.74 : 101,720.88 = 40,174.74 : x - Step 2: Convert to fraction form
73,708.74/101,720.88 = 40,174.74/x - Step 3: Cross multiply
73,708.74x = 101,720.88 × 40,174.74 - Step 4: Simplify right side
73,708.74x = 4,086,609,906.57 - Step 5: Solve for x
x = 4,086,609,906.57/73,708.74 - Step 6: Final answer
x = 55,442.68
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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.