Finding the Fourth Proportional to 74,471.44, 102,771.62 and 40,480.60
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Solution
The fourth proportional to 74,471.44, 102,771.62 and 40,480.60 is: 55,863.79
Step by Step Solution
- Step 1: Write the proportion equation
74,471.44 : 102,771.62 = 40,480.60 : x - Step 2: Convert to fraction form
74,471.44/102,771.62 = 40,480.60/x - Step 3: Cross multiply
74,471.44x = 102,771.62 × 40,480.60 - Step 4: Simplify right side
74,471.44x = 4,160,256,840.57 - Step 5: Solve for x
x = 4,160,256,840.57/74,471.44 - Step 6: Final answer
x = 55,863.79
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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.