Finding the Fourth Proportional to 76,575.26, 114,787.91 and 42,857.75
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Solution
The fourth proportional to 76,575.26, 114,787.91 and 42,857.75 is: 64,244.65
Step by Step Solution
- Step 1: Write the proportion equation
76,575.26 : 114,787.91 = 42,857.75 : x - Step 2: Convert to fraction form
76,575.26/114,787.91 = 42,857.75/x - Step 3: Cross multiply
76,575.26x = 114,787.91 × 42,857.75 - Step 4: Simplify right side
76,575.26x = 4,919,551,048.54 - Step 5: Solve for x
x = 4,919,551,048.54/76,575.26 - Step 6: Final answer
x = 64,244.65
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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.