Finding the Fourth Proportional to 87,069.94, 120,163.70 and 48,828.83
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Solution
The fourth proportional to 87,069.94, 120,163.70 and 48,828.83 is: 67,387.81
Step by Step Solution
- Step 1: Write the proportion equation
87,069.94 : 120,163.70 = 48,828.83 : x - Step 2: Convert to fraction form
87,069.94/120,163.70 = 48,828.83/x - Step 3: Cross multiply
87,069.94x = 120,163.70 × 48,828.83 - Step 4: Simplify right side
87,069.94x = 5,867,452,400.72 - Step 5: Solve for x
x = 5,867,452,400.72/87,069.94 - Step 6: Final answer
x = 67,387.81
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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.