Finding the Fourth Proportional to 83,000.75, 114,539.68 and 47,189.99
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Solution
The fourth proportional to 83,000.75, 114,539.68 and 47,189.99 is: 65,121.42
Step by Step Solution
- Step 1: Write the proportion equation
83,000.75 : 114,539.68 = 47,189.99 : x - Step 2: Convert to fraction form
83,000.75/114,539.68 = 47,189.99/x - Step 3: Cross multiply
83,000.75x = 114,539.68 × 47,189.99 - Step 4: Simplify right side
83,000.75x = 5,405,126,765.50 - Step 5: Solve for x
x = 5,405,126,765.50/83,000.75 - Step 6: Final answer
x = 65,121.42
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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.