Finding the Fourth Proportional to 74,161.94, 102,361.77 and 42,349.28
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Solution
The fourth proportional to 74,161.94, 102,361.77 and 42,349.28 is: 58,452.45
Step by Step Solution
- Step 1: Write the proportion equation
74,161.94 : 102,361.77 = 42,349.28 : x - Step 2: Convert to fraction form
74,161.94/102,361.77 = 42,349.28/x - Step 3: Cross multiply
74,161.94x = 102,361.77 × 42,349.28 - Step 4: Simplify right side
74,161.94x = 4,334,946,747.22 - Step 5: Solve for x
x = 4,334,946,747.22/74,161.94 - Step 6: Final answer
x = 58,452.45
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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.