Finding the Fourth Proportional to 87,348.53, 120,505.97 and 55,072.53
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Solution
The fourth proportional to 87,348.53, 120,505.97 and 55,072.53 is: 75,978.02
Step by Step Solution
- Step 1: Write the proportion equation
87,348.53 : 120,505.97 = 55,072.53 : x - Step 2: Convert to fraction form
87,348.53/120,505.97 = 55,072.53/x - Step 3: Cross multiply
87,348.53x = 120,505.97 × 55,072.53 - Step 4: Simplify right side
87,348.53x = 6,636,568,372.64 - Step 5: Solve for x
x = 6,636,568,372.64/87,348.53 - Step 6: Final answer
x = 75,978.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.