Finding the Fourth Proportional to 68,932.80, 103,311.36 and 29,479.68
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Solution
The fourth proportional to 68,932.80, 103,311.36 and 29,479.68 is: 44,181.95
Step by Step Solution
- Step 1: Write the proportion equation
68,932.80 : 103,311.36 = 29,479.68 : x - Step 2: Convert to fraction form
68,932.80/103,311.36 = 29,479.68/x - Step 3: Cross multiply
68,932.80x = 103,311.36 × 29,479.68 - Step 4: Simplify right side
68,932.80x = 3,045,585,833.16 - Step 5: Solve for x
x = 3,045,585,833.16/68,932.80 - Step 6: Final answer
x = 44,181.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.