Finding the Fourth Proportional to 68,378.48, 102,297.99 and 51,786.44
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Solution
The fourth proportional to 68,378.48, 102,297.99 and 51,786.44 is: 77,475.38
Step by Step Solution
- Step 1: Write the proportion equation
68,378.48 : 102,297.99 = 51,786.44 : x - Step 2: Convert to fraction form
68,378.48/102,297.99 = 51,786.44/x - Step 3: Cross multiply
68,378.48x = 102,297.99 × 51,786.44 - Step 4: Simplify right side
68,378.48x = 5,297,648,721.26 - Step 5: Solve for x
x = 5,297,648,721.26/68,378.48 - Step 6: Final answer
x = 77,475.38
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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.