Finding the Fourth Proportional to 87,845.36, 121,226.68 and 47,559.15
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Solution
The fourth proportional to 87,845.36, 121,226.68 and 47,559.15 is: 65,631.67
Step by Step Solution
- Step 1: Write the proportion equation
87,845.36 : 121,226.68 = 47,559.15 : x - Step 2: Convert to fraction form
87,845.36/121,226.68 = 47,559.15/x - Step 3: Cross multiply
87,845.36x = 121,226.68 × 47,559.15 - Step 4: Simplify right side
87,845.36x = 5,765,437,650.05 - Step 5: Solve for x
x = 5,765,437,650.05/87,845.36 - Step 6: Final answer
x = 65,631.67
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1.5x scale
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.