Finding the Fourth Proportional to 89,043.30, 122,879.76 and 48,757.08
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Solution
The fourth proportional to 89,043.30, 122,879.76 and 48,757.08 is: 67,284.77
Step by Step Solution
- Step 1: Write the proportion equation
89,043.30 : 122,879.76 = 48,757.08 : x - Step 2: Convert to fraction form
89,043.30/122,879.76 = 48,757.08/x - Step 3: Cross multiply
89,043.30x = 122,879.76 × 48,757.08 - Step 4: Simplify right side
89,043.30x = 5,991,258,288.70 - Step 5: Solve for x
x = 5,991,258,288.70/89,043.30 - Step 6: Final answer
x = 67,284.77
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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.