Finding the Fourth Proportional to 84,021.87, 115,949.97 and 46,296.12
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Solution
The fourth proportional to 84,021.87, 115,949.97 and 46,296.12 is: 63,888.53
Step by Step Solution
- Step 1: Write the proportion equation
84,021.87 : 115,949.97 = 46,296.12 : x - Step 2: Convert to fraction form
84,021.87/115,949.97 = 46,296.12/x - Step 3: Cross multiply
84,021.87x = 115,949.97 × 46,296.12 - Step 4: Simplify right side
84,021.87x = 5,368,033,725.12 - Step 5: Solve for x
x = 5,368,033,725.12/84,021.87 - Step 6: Final answer
x = 63,888.53
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1.5x scale
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.