Finding the Fourth Proportional to 68,423.20, 102,537.60 and 47,622.40
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Solution
The fourth proportional to 68,423.20, 102,537.60 and 47,622.40 is: 71,365.95
Step by Step Solution
- Step 1: Write the proportion equation
68,423.20 : 102,537.60 = 47,622.40 : x - Step 2: Convert to fraction form
68,423.20/102,537.60 = 47,622.40/x - Step 3: Cross multiply
68,423.20x = 102,537.60 × 47,622.40 - Step 4: Simplify right side
68,423.20x = 4,883,086,602.24 - Step 5: Solve for x
x = 4,883,086,602.24/68,423.20 - Step 6: Final answer
x = 71,365.95
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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.