Finding the Fourth Proportional to 67,896.60, 101,845.67 and 20,512.09
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Solution
The fourth proportional to 67,896.60, 101,845.67 and 20,512.09 is: 30,768.37
Step by Step Solution
- Step 1: Write the proportion equation
67,896.60 : 101,845.67 = 20,512.09 : x - Step 2: Convert to fraction form
67,896.60/101,845.67 = 20,512.09/x - Step 3: Cross multiply
67,896.60x = 101,845.67 × 20,512.09 - Step 4: Simplify right side
67,896.60x = 2,089,067,549.15 - Step 5: Solve for x
x = 2,089,067,549.15/67,896.60 - Step 6: Final answer
x = 30,768.37
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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.