Finding the Fourth Proportional to 77,717.12, 107,249.63 and 44,183.12
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Solution
The fourth proportional to 77,717.12, 107,249.63 and 44,183.12 is: 60,972.70
Step by Step Solution
- Step 1: Write the proportion equation
77,717.12 : 107,249.63 = 44,183.12 : x - Step 2: Convert to fraction form
77,717.12/107,249.63 = 44,183.12/x - Step 3: Cross multiply
77,717.12x = 107,249.63 × 44,183.12 - Step 4: Simplify right side
77,717.12x = 4,738,622,515.08 - Step 5: Solve for x
x = 4,738,622,515.08/77,717.12 - Step 6: Final answer
x = 60,972.70
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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.