Finding the Fourth Proportional to 87,079.79, 120,171.49 and 48,847.84
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Solution
The fourth proportional to 87,079.79, 120,171.49 and 48,847.84 is: 67,410.79
Step by Step Solution
- Step 1: Write the proportion equation
87,079.79 : 120,171.49 = 48,847.84 : x - Step 2: Convert to fraction form
87,079.79/120,171.49 = 48,847.84/x - Step 3: Cross multiply
87,079.79x = 120,171.49 × 48,847.84 - Step 4: Simplify right side
87,079.79x = 5,870,117,293.53 - Step 5: Solve for x
x = 5,870,117,293.53/87,079.79 - Step 6: Final answer
x = 67,410.79
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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.