Finding the Fourth Proportional to 87,442.26, 120,676.92 and 53,457.18
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Solution
The fourth proportional to 87,442.26, 120,676.92 and 53,457.18 is: 73,774.94
Step by Step Solution
- Step 1: Write the proportion equation
87,442.26 : 120,676.92 = 53,457.18 : x - Step 2: Convert to fraction form
87,442.26/120,676.92 = 53,457.18/x - Step 3: Cross multiply
87,442.26x = 120,676.92 × 53,457.18 - Step 4: Simplify right side
87,442.26x = 6,451,047,834.29 - Step 5: Solve for x
x = 6,451,047,834.29/87,442.26 - Step 6: Final answer
x = 73,774.94
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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.