Finding the Fourth Proportional to 79,755.63, 110,067.69 and 43,945.63
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Solution
The fourth proportional to 79,755.63, 110,067.69 and 43,945.63 is: 60,647.68
Step by Step Solution
- Step 1: Write the proportion equation
79,755.63 : 110,067.69 = 43,945.63 : x - Step 2: Convert to fraction form
79,755.63/110,067.69 = 43,945.63/x - Step 3: Cross multiply
79,755.63x = 110,067.69 × 43,945.63 - Step 4: Simplify right side
79,755.63x = 4,836,994,117.66 - Step 5: Solve for x
x = 4,836,994,117.66/79,755.63 - Step 6: Final answer
x = 60,647.68
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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.