Finding the Fourth Proportional to 79,481.31, 109,635.51 and 47,193.99
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Solution
The fourth proportional to 79,481.31, 109,635.51 and 47,193.99 is: 65,098.79
Step by Step Solution
- Step 1: Write the proportion equation
79,481.31 : 109,635.51 = 47,193.99 : x - Step 2: Convert to fraction form
79,481.31/109,635.51 = 47,193.99/x - Step 3: Cross multiply
79,481.31x = 109,635.51 × 47,193.99 - Step 4: Simplify right side
79,481.31x = 5,174,137,162.58 - Step 5: Solve for x
x = 5,174,137,162.58/79,481.31 - Step 6: Final answer
x = 65,098.79
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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.