Finding the Fourth Proportional to 68,489.19, 102,750.12 and 21,742.11
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Solution
The fourth proportional to 68,489.19, 102,750.12 and 21,742.11 is: 32,618.35
Step by Step Solution
- Step 1: Write the proportion equation
68,489.19 : 102,750.12 = 21,742.11 : x - Step 2: Convert to fraction form
68,489.19/102,750.12 = 21,742.11/x - Step 3: Cross multiply
68,489.19x = 102,750.12 × 21,742.11 - Step 4: Simplify right side
68,489.19x = 2,234,004,411.55 - Step 5: Solve for x
x = 2,234,004,411.55/68,489.19 - Step 6: Final answer
x = 32,618.35
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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.