Finding the Fourth Proportional to 68,412.84, 102,619.26 and 49,811.26
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Solution
The fourth proportional to 68,412.84, 102,619.26 and 49,811.26 is: 74,716.89
Step by Step Solution
- Step 1: Write the proportion equation
68,412.84 : 102,619.26 = 49,811.26 : x - Step 2: Convert to fraction form
68,412.84/102,619.26 = 49,811.26/x - Step 3: Cross multiply
68,412.84x = 102,619.26 × 49,811.26 - Step 4: Simplify right side
68,412.84x = 5,111,594,640.87 - Step 5: Solve for x
x = 5,111,594,640.87/68,412.84 - Step 6: Final answer
x = 74,716.89
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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.