Finding the Fourth Proportional to 74,028.42, 102,161.61 and 40,494.42
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Solution
The fourth proportional to 74,028.42, 102,161.61 and 40,494.42 is: 55,883.61
Step by Step Solution
- Step 1: Write the proportion equation
74,028.42 : 102,161.61 = 40,494.42 : x - Step 2: Convert to fraction form
74,028.42/102,161.61 = 40,494.42/x - Step 3: Cross multiply
74,028.42x = 102,161.61 × 40,494.42 - Step 4: Simplify right side
74,028.42x = 4,136,975,143.22 - Step 5: Solve for x
x = 4,136,975,143.22/74,028.42 - Step 6: Final answer
x = 55,883.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.