Finding the Fourth Proportional to 75,047.48, 103,520.40 and 49,554.08
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Solution
The fourth proportional to 75,047.48, 103,520.40 and 49,554.08 is: 68,354.84
Step by Step Solution
- Step 1: Write the proportion equation
75,047.48 : 103,520.40 = 49,554.08 : x - Step 2: Convert to fraction form
75,047.48/103,520.40 = 49,554.08/x - Step 3: Cross multiply
75,047.48x = 103,520.40 × 49,554.08 - Step 4: Simplify right side
75,047.48x = 5,129,858,183.23 - Step 5: Solve for x
x = 5,129,858,183.23/75,047.48 - Step 6: Final answer
x = 68,354.84
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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.