Finding the Fourth Proportional to 75,711.08, 113,459.47 and 41,991.94
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Solution
The fourth proportional to 75,711.08, 113,459.47 and 41,991.94 is: 62,928.48
Step by Step Solution
- Step 1: Write the proportion equation
75,711.08 : 113,459.47 = 41,991.94 : x - Step 2: Convert to fraction form
75,711.08/113,459.47 = 41,991.94/x - Step 3: Cross multiply
75,711.08x = 113,459.47 × 41,991.94 - Step 4: Simplify right side
75,711.08x = 4,764,382,872.49 - Step 5: Solve for x
x = 4,764,382,872.49/75,711.08 - Step 6: Final answer
x = 62,928.48
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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.