Finding the Fourth Proportional to 76,202.91, 114,378.17 and 36,787.70
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Solution
The fourth proportional to 76,202.91, 114,378.17 and 36,787.70 is: 55,217.17
Step by Step Solution
- Step 1: Write the proportion equation
76,202.91 : 114,378.17 = 36,787.70 : x - Step 2: Convert to fraction form
76,202.91/114,378.17 = 36,787.70/x - Step 3: Cross multiply
76,202.91x = 114,378.17 × 36,787.70 - Step 4: Simplify right side
76,202.91x = 4,207,709,048.68 - Step 5: Solve for x
x = 4,207,709,048.68/76,202.91 - Step 6: Final answer
x = 55,217.17
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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.