Finding the Fourth Proportional to 74,825.26, 103,174.73 and 61,171.09
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Solution
The fourth proportional to 74,825.26, 103,174.73 and 61,171.09 is: 84,347.33
Step by Step Solution
- Step 1: Write the proportion equation
74,825.26 : 103,174.73 = 61,171.09 : x - Step 2: Convert to fraction form
74,825.26/103,174.73 = 61,171.09/x - Step 3: Cross multiply
74,825.26x = 103,174.73 × 61,171.09 - Step 4: Simplify right side
74,825.26x = 6,311,310,360.16 - Step 5: Solve for x
x = 6,311,310,360.16/74,825.26 - Step 6: Final answer
x = 84,347.33
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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.