Finding the Fourth Proportional to 78,452.62, 117,612.61 and 34,045.99
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Solution
The fourth proportional to 78,452.62, 117,612.61 and 34,045.99 is: 51,040.20
Step by Step Solution
- Step 1: Write the proportion equation
78,452.62 : 117,612.61 = 34,045.99 : x - Step 2: Convert to fraction form
78,452.62/117,612.61 = 34,045.99/x - Step 3: Cross multiply
78,452.62x = 117,612.61 × 34,045.99 - Step 4: Simplify right side
78,452.62x = 4,004,237,364.79 - Step 5: Solve for x
x = 4,004,237,364.79/78,452.62 - Step 6: Final answer
x = 51,040.20
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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.