Finding the Fourth Proportional to 75,439.61, 113,183.99 and 35,991.62
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Solution
The fourth proportional to 75,439.61, 113,183.99 and 35,991.62 is: 53,999.15
Step by Step Solution
- Step 1: Write the proportion equation
75,439.61 : 113,183.99 = 35,991.62 : x - Step 2: Convert to fraction form
75,439.61/113,183.99 = 35,991.62/x - Step 3: Cross multiply
75,439.61x = 113,183.99 × 35,991.62 - Step 4: Simplify right side
75,439.61x = 4,073,674,978.21 - Step 5: Solve for x
x = 4,073,674,978.21/75,439.61 - Step 6: Final answer
x = 53,999.15
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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.