Finding the Fourth Proportional to 87,246.92, 120,475.60 and 84,425.69
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Solution
The fourth proportional to 87,246.92, 120,475.60 and 84,425.69 is: 116,579.88
Step by Step Solution
- Step 1: Write the proportion equation
87,246.92 : 120,475.60 = 84,425.69 : x - Step 2: Convert to fraction form
87,246.92/120,475.60 = 84,425.69/x - Step 3: Cross multiply
87,246.92x = 120,475.60 × 84,425.69 - Step 4: Simplify right side
87,246.92x = 10,171,235,748.29 - Step 5: Solve for x
x = 10,171,235,748.29/87,246.92 - Step 6: Final answer
x = 116,579.88
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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.