Finding the Fourth Proportional to 68,243.80, 102,365.70 and 63,635.80
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Solution
The fourth proportional to 68,243.80, 102,365.70 and 63,635.80 is: 95,453.70
Step by Step Solution
- Step 1: Write the proportion equation
68,243.80 : 102,365.70 = 63,635.80 : x - Step 2: Convert to fraction form
68,243.80/102,365.70 = 63,635.80/x - Step 3: Cross multiply
68,243.80x = 102,365.70 × 63,635.80 - Step 4: Simplify right side
68,243.80x = 6,514,123,212.06 - Step 5: Solve for x
x = 6,514,123,212.06/68,243.80 - Step 6: Final answer
x = 95,453.70
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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.