Finding the Fourth Proportional to 74,460.44, 102,755.74 and 40,928.60
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Solution
The fourth proportional to 74,460.44, 102,755.74 and 40,928.60 is: 56,481.65
Step by Step Solution
- Step 1: Write the proportion equation
74,460.44 : 102,755.74 = 40,928.60 : x - Step 2: Convert to fraction form
74,460.44/102,755.74 = 40,928.60/x - Step 3: Cross multiply
74,460.44x = 102,755.74 × 40,928.60 - Step 4: Simplify right side
74,460.44x = 4,205,648,580.16 - Step 5: Solve for x
x = 4,205,648,580.16/74,460.44 - Step 6: Final answer
x = 56,481.65
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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.