Finding the Fourth Proportional to 78,596.36, 117,532.39 and 58,371.30
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Solution
The fourth proportional to 78,596.36, 117,532.39 and 58,371.30 is: 87,287.99
Step by Step Solution
- Step 1: Write the proportion equation
78,596.36 : 117,532.39 = 58,371.30 : x - Step 2: Convert to fraction form
78,596.36/117,532.39 = 58,371.30/x - Step 3: Cross multiply
78,596.36x = 117,532.39 × 58,371.30 - Step 4: Simplify right side
78,596.36x = 6,860,518,396.41 - Step 5: Solve for x
x = 6,860,518,396.41/78,596.36 - Step 6: Final answer
x = 87,287.99
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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.