Finding the Fourth Proportional to 78,672.19, 108,563.84 and 44,676.18
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Solution
The fourth proportional to 78,672.19, 108,563.84 and 44,676.18 is: 61,650.99
Step by Step Solution
- Step 1: Write the proportion equation
78,672.19 : 108,563.84 = 44,676.18 : x - Step 2: Convert to fraction form
78,672.19/108,563.84 = 44,676.18/x - Step 3: Cross multiply
78,672.19x = 108,563.84 × 44,676.18 - Step 4: Simplify right side
78,672.19x = 4,850,218,158.13 - Step 5: Solve for x
x = 4,850,218,158.13/78,672.19 - Step 6: Final answer
x = 61,650.99
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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.