Finding the Fourth Proportional to 74,845.19, 112,324.89 and 27,505.14
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Solution
The fourth proportional to 74,845.19, 112,324.89 and 27,505.14 is: 41,278.70
Step by Step Solution
- Step 1: Write the proportion equation
74,845.19 : 112,324.89 = 27,505.14 : x - Step 2: Convert to fraction form
74,845.19/112,324.89 = 27,505.14/x - Step 3: Cross multiply
74,845.19x = 112,324.89 × 27,505.14 - Step 4: Simplify right side
74,845.19x = 3,089,511,824.93 - Step 5: Solve for x
x = 3,089,511,824.93/74,845.19 - Step 6: Final answer
x = 41,278.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.