Finding the Fourth Proportional to 83,908.36, 115,796.82 and 46,186.12
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Solution
The fourth proportional to 83,908.36, 115,796.82 and 46,186.12 is: 63,738.65
Step by Step Solution
- Step 1: Write the proportion equation
83,908.36 : 115,796.82 = 46,186.12 : x - Step 2: Convert to fraction form
83,908.36/115,796.82 = 46,186.12/x - Step 3: Cross multiply
83,908.36x = 115,796.82 × 46,186.12 - Step 4: Simplify right side
83,908.36x = 5,348,205,824.14 - Step 5: Solve for x
x = 5,348,205,824.14/83,908.36 - Step 6: Final answer
x = 63,738.65
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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.