Finding the Fourth Proportional to 78,354.44, 108,135.84 and 44,368.91
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Solution
The fourth proportional to 78,354.44, 108,135.84 and 44,368.91 is: 61,232.90
Step by Step Solution
- Step 1: Write the proportion equation
78,354.44 : 108,135.84 = 44,368.91 : x - Step 2: Convert to fraction form
78,354.44/108,135.84 = 44,368.91/x - Step 3: Cross multiply
78,354.44x = 108,135.84 × 44,368.91 - Step 4: Simplify right side
78,354.44x = 4,797,869,617.85 - Step 5: Solve for x
x = 4,797,869,617.85/78,354.44 - Step 6: Final answer
x = 61,232.90
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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.