Finding the Fourth Proportional to 84,229.76, 126,421.12 and 44,819.84
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Solution
The fourth proportional to 84,229.76, 126,421.12 and 44,819.84 is: 67,270.46
Step by Step Solution
- Step 1: Write the proportion equation
84,229.76 : 126,421.12 = 44,819.84 : x - Step 2: Convert to fraction form
84,229.76/126,421.12 = 44,819.84/x - Step 3: Cross multiply
84,229.76x = 126,421.12 × 44,819.84 - Step 4: Simplify right side
84,229.76x = 5,666,174,371.02 - Step 5: Solve for x
x = 5,666,174,371.02/84,229.76 - Step 6: Final answer
x = 67,270.46
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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.