Finding the Fourth Proportional to 84,214.87, 116,218.63 and 47,914.31
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Solution
The fourth proportional to 84,214.87, 116,218.63 and 47,914.31 is: 66,122.95
Step by Step Solution
- Step 1: Write the proportion equation
84,214.87 : 116,218.63 = 47,914.31 : x - Step 2: Convert to fraction form
84,214.87/116,218.63 = 47,914.31/x - Step 3: Cross multiply
84,214.87x = 116,218.63 × 47,914.31 - Step 4: Simplify right side
84,214.87x = 5,568,535,816.03 - Step 5: Solve for x
x = 5,568,535,816.03/84,214.87 - Step 6: Final answer
x = 66,122.95
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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.