Finding the Fourth Proportional to 68,406.09, 102,764.84 and 49,489.08
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Solution
The fourth proportional to 68,406.09, 102,764.84 and 49,489.08 is: 74,346.26
Step by Step Solution
- Step 1: Write the proportion equation
68,406.09 : 102,764.84 = 49,489.08 : x - Step 2: Convert to fraction form
68,406.09/102,764.84 = 49,489.08/x - Step 3: Cross multiply
68,406.09x = 102,764.84 × 49,489.08 - Step 4: Simplify right side
68,406.09x = 5,085,736,755.13 - Step 5: Solve for x
x = 5,085,736,755.13/68,406.09 - Step 6: Final answer
x = 74,346.26
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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.