Finding the Fourth Proportional to 68,461.10, 102,441.84 and 40,394.60
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Solution
The fourth proportional to 68,461.10, 102,441.84 and 40,394.60 is: 60,444.50
Step by Step Solution
- Step 1: Write the proportion equation
68,461.10 : 102,441.84 = 40,394.60 : x - Step 2: Convert to fraction form
68,461.10/102,441.84 = 40,394.60/x - Step 3: Cross multiply
68,461.10x = 102,441.84 × 40,394.60 - Step 4: Simplify right side
68,461.10x = 4,138,097,150.06 - Step 5: Solve for x
x = 4,138,097,150.06/68,461.10 - Step 6: Final answer
x = 60,444.50
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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.