Finding the Fourth Proportional to 84,728.82, 116,930.64 and 51,205.62
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Solution
The fourth proportional to 84,728.82, 116,930.64 and 51,205.62 is: 70,666.70
Step by Step Solution
- Step 1: Write the proportion equation
84,728.82 : 116,930.64 = 51,205.62 : x - Step 2: Convert to fraction form
84,728.82/116,930.64 = 51,205.62/x - Step 3: Cross multiply
84,728.82x = 116,930.64 × 51,205.62 - Step 4: Simplify right side
84,728.82x = 5,987,505,918.20 - Step 5: Solve for x
x = 5,987,505,918.20/84,728.82 - Step 6: Final answer
x = 70,666.70
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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.