Finding the Fourth Proportional to 73,512.75, 110,269.14 and 31,959.75
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Solution
The fourth proportional to 73,512.75, 110,269.14 and 31,959.75 is: 47,939.63
Step by Step Solution
- Step 1: Write the proportion equation
73,512.75 : 110,269.14 = 31,959.75 : x - Step 2: Convert to fraction form
73,512.75/110,269.14 = 31,959.75/x - Step 3: Cross multiply
73,512.75x = 110,269.14 × 31,959.75 - Step 4: Simplify right side
73,512.75x = 3,524,174,147.12 - Step 5: Solve for x
x = 3,524,174,147.12/73,512.75 - Step 6: Final answer
x = 47,939.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.