Finding the Fourth Proportional to 74,571.40, 102,910.69 and 40,582.08
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Solution
The fourth proportional to 74,571.40, 102,910.69 and 40,582.08 is: 56,004.44
Step by Step Solution
- Step 1: Write the proportion equation
74,571.40 : 102,910.69 = 40,582.08 : x - Step 2: Convert to fraction form
74,571.40/102,910.69 = 40,582.08/x - Step 3: Cross multiply
74,571.40x = 102,910.69 × 40,582.08 - Step 4: Simplify right side
74,571.40x = 4,176,329,136.97 - Step 5: Solve for x
x = 4,176,329,136.97/74,571.40 - Step 6: Final answer
x = 56,004.44
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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.