Finding the Fourth Proportional to 74,467.70, 104,021.50 and 74,467.70
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Solution
The fourth proportional to 74,467.70, 104,021.50 and 74,467.70 is: 104,021.50
Step by Step Solution
- Step 1: Write the proportion equation
74,467.70 : 104,021.50 = 74,467.70 : x - Step 2: Convert to fraction form
74,467.70/104,021.50 = 74,467.70/x - Step 3: Cross multiply
74,467.70x = 104,021.50 × 74,467.70 - Step 4: Simplify right side
74,467.70x = 7,746,241,855.55 - Step 5: Solve for x
x = 7,746,241,855.55/74,467.70 - Step 6: Final answer
x = 104,021.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.