Finding the Fourth Proportional to 78,453.62, 117,614.11 and 34,046.99
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Solution
The fourth proportional to 78,453.62, 117,614.11 and 34,046.99 is: 51,041.70
Step by Step Solution
- Step 1: Write the proportion equation
78,453.62 : 117,614.11 = 34,046.99 : x - Step 2: Convert to fraction form
78,453.62/117,614.11 = 34,046.99/x - Step 3: Cross multiply
78,453.62x = 117,614.11 × 34,046.99 - Step 4: Simplify right side
78,453.62x = 4,004,406,427.03 - Step 5: Solve for x
x = 4,004,406,427.03/78,453.62 - Step 6: Final answer
x = 51,041.70
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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.