Finding the Fourth Proportional to 71,568.93, 107,353.41 and 18,982.53
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Solution
The fourth proportional to 71,568.93, 107,353.41 and 18,982.53 is: 28,473.80
Step by Step Solution
- Step 1: Write the proportion equation
71,568.93 : 107,353.41 = 18,982.53 : x - Step 2: Convert to fraction form
71,568.93/107,353.41 = 18,982.53/x - Step 3: Cross multiply
71,568.93x = 107,353.41 × 18,982.53 - Step 4: Simplify right side
71,568.93x = 2,037,839,325.93 - Step 5: Solve for x
x = 2,037,839,325.93/71,568.93 - Step 6: Final answer
x = 28,473.80
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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.