Finding the Fourth Proportional to 68,575.36, 102,787.44 and 38,929.36
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Solution
The fourth proportional to 68,575.36, 102,787.44 and 38,929.36 is: 58,351.12
Step by Step Solution
- Step 1: Write the proportion equation
68,575.36 : 102,787.44 = 38,929.36 : x - Step 2: Convert to fraction form
68,575.36/102,787.44 = 38,929.36/x - Step 3: Cross multiply
68,575.36x = 102,787.44 × 38,929.36 - Step 4: Simplify right side
68,575.36x = 4,001,449,255.24 - Step 5: Solve for x
x = 4,001,449,255.24/68,575.36 - Step 6: Final answer
x = 58,351.12
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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.