Finding the Fourth Proportional to 84,879.72, 117,135.87 and 46,639.83
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Solution
The fourth proportional to 84,879.72, 117,135.87 and 46,639.83 is: 64,363.99
Step by Step Solution
- Step 1: Write the proportion equation
84,879.72 : 117,135.87 = 46,639.83 : x - Step 2: Convert to fraction form
84,879.72/117,135.87 = 46,639.83/x - Step 3: Cross multiply
84,879.72x = 117,135.87 × 46,639.83 - Step 4: Simplify right side
84,879.72x = 5,463,197,063.70 - Step 5: Solve for x
x = 5,463,197,063.70/84,879.72 - Step 6: Final answer
x = 64,363.99
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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.