Finding the Fourth Proportional to 74,234.80, 111,352.20 and 29,838.70
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Solution
The fourth proportional to 74,234.80, 111,352.20 and 29,838.70 is: 44,758.05
Step by Step Solution
- Step 1: Write the proportion equation
74,234.80 : 111,352.20 = 29,838.70 : x - Step 2: Convert to fraction form
74,234.80/111,352.20 = 29,838.70/x - Step 3: Cross multiply
74,234.80x = 111,352.20 × 29,838.70 - Step 4: Simplify right side
74,234.80x = 3,322,604,890.14 - Step 5: Solve for x
x = 3,322,604,890.14/74,234.80 - Step 6: Final answer
x = 44,758.05
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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.