Finding the Fourth Proportional to 87,505.94, 120,750.40 and 48,740.79
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Solution
The fourth proportional to 87,505.94, 120,750.40 and 48,740.79 is: 67,257.95
Step by Step Solution
- Step 1: Write the proportion equation
87,505.94 : 120,750.40 = 48,740.79 : x - Step 2: Convert to fraction form
87,505.94/120,750.40 = 48,740.79/x - Step 3: Cross multiply
87,505.94x = 120,750.40 × 48,740.79 - Step 4: Simplify right side
87,505.94x = 5,885,469,766.96 - Step 5: Solve for x
x = 5,885,469,766.96/87,505.94 - Step 6: Final answer
x = 67,257.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.