Finding the Fourth Proportional to 74,640.24, 102,860.42 and 47,735.88
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Solution
The fourth proportional to 74,640.24, 102,860.42 and 47,735.88 is: 65,783.99
Step by Step Solution
- Step 1: Write the proportion equation
74,640.24 : 102,860.42 = 47,735.88 : x - Step 2: Convert to fraction form
74,640.24/102,860.42 = 47,735.88/x - Step 3: Cross multiply
74,640.24x = 102,860.42 × 47,735.88 - Step 4: Simplify right side
74,640.24x = 4,910,132,665.87 - Step 5: Solve for x
x = 4,910,132,665.87/74,640.24 - Step 6: Final answer
x = 65,783.99
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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.