Finding the Fourth Proportional to 75,442.19, 104,115.78 and 49,904.44
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Solution
The fourth proportional to 75,442.19, 104,115.78 and 49,904.44 is: 68,871.80
Step by Step Solution
- Step 1: Write the proportion equation
75,442.19 : 104,115.78 = 49,904.44 : x - Step 2: Convert to fraction form
75,442.19/104,115.78 = 49,904.44/x - Step 3: Cross multiply
75,442.19x = 104,115.78 × 49,904.44 - Step 4: Simplify right side
75,442.19x = 5,195,839,435.77 - Step 5: Solve for x
x = 5,195,839,435.77/75,442.19 - Step 6: Final answer
x = 68,871.80
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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.