Finding the Fourth Proportional to 87,845.67, 121,226.97 and 47,559.40
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Solution
The fourth proportional to 87,845.67, 121,226.97 and 47,559.40 is: 65,631.94
Step by Step Solution
- Step 1: Write the proportion equation
87,845.67 : 121,226.97 = 47,559.40 : x - Step 2: Convert to fraction form
87,845.67/121,226.97 = 47,559.40/x - Step 3: Cross multiply
87,845.67x = 121,226.97 × 47,559.40 - Step 4: Simplify right side
87,845.67x = 5,765,481,957.02 - Step 5: Solve for x
x = 5,765,481,957.02/87,845.67 - Step 6: Final answer
x = 65,631.94
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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.