Finding the Fourth Proportional to 68,674.67, 102,995.85 and 18,742.91
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Solution
The fourth proportional to 68,674.67, 102,995.85 and 18,742.91 is: 28,109.95
Step by Step Solution
- Step 1: Write the proportion equation
68,674.67 : 102,995.85 = 18,742.91 : x - Step 2: Convert to fraction form
68,674.67/102,995.85 = 18,742.91/x - Step 3: Cross multiply
68,674.67x = 102,995.85 × 18,742.91 - Step 4: Simplify right side
68,674.67x = 1,930,441,502.23 - Step 5: Solve for x
x = 1,930,441,502.23/68,674.67 - Step 6: Final answer
x = 28,109.95
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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.