Finding the Fourth Proportional to 74,618.40, 102,951.36 and 44,379.48
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Solution
The fourth proportional to 74,618.40, 102,951.36 and 44,379.48 is: 61,230.58
Step by Step Solution
- Step 1: Write the proportion equation
74,618.40 : 102,951.36 = 44,379.48 : x - Step 2: Convert to fraction form
74,618.40/102,951.36 = 44,379.48/x - Step 3: Cross multiply
74,618.40x = 102,951.36 × 44,379.48 - Step 4: Simplify right side
74,618.40x = 4,568,927,822.09 - Step 5: Solve for x
x = 4,568,927,822.09/74,618.40 - Step 6: Final answer
x = 61,230.58
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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.