Finding the Fourth Proportional to 68,542.80, 102,583.80 and 47,806.80
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Solution
The fourth proportional to 68,542.80, 102,583.80 and 47,806.80 is: 71,549.50
Step by Step Solution
- Step 1: Write the proportion equation
68,542.80 : 102,583.80 = 47,806.80 : x - Step 2: Convert to fraction form
68,542.80/102,583.80 = 47,806.80/x - Step 3: Cross multiply
68,542.80x = 102,583.80 × 47,806.80 - Step 4: Simplify right side
68,542.80x = 4,904,203,209.84 - Step 5: Solve for x
x = 4,904,203,209.84/68,542.80 - Step 6: Final answer
x = 71,549.50
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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.