Finding the Fourth Proportional to 74,115.14, 111,186.68 and 29,745.36
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Solution
The fourth proportional to 74,115.14, 111,186.68 and 29,745.36 is: 44,623.65
Step by Step Solution
- Step 1: Write the proportion equation
74,115.14 : 111,186.68 = 29,745.36 : x - Step 2: Convert to fraction form
74,115.14/111,186.68 = 29,745.36/x - Step 3: Cross multiply
74,115.14x = 111,186.68 × 29,745.36 - Step 4: Simplify right side
74,115.14x = 3,307,287,675.08 - Step 5: Solve for x
x = 3,307,287,675.08/74,115.14 - Step 6: Final answer
x = 44,623.65
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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.