Finding the Fourth Proportional to 83,589.63, 115,353.67 and 47,780.41
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Solution
The fourth proportional to 83,589.63, 115,353.67 and 47,780.41 is: 65,936.95
Step by Step Solution
- Step 1: Write the proportion equation
83,589.63 : 115,353.67 = 47,780.41 : x - Step 2: Convert to fraction form
83,589.63/115,353.67 = 47,780.41/x - Step 3: Cross multiply
83,589.63x = 115,353.67 × 47,780.41 - Step 4: Simplify right side
83,589.63x = 5,511,645,436.44 - Step 5: Solve for x
x = 5,511,645,436.44/83,589.63 - Step 6: Final answer
x = 65,936.95
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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.