Finding the Fourth Proportional to 84,284.56, 126,445.31 and 31,694.05
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Solution
The fourth proportional to 84,284.56, 126,445.31 and 31,694.05 is: 47,548.02
Step by Step Solution
- Step 1: Write the proportion equation
84,284.56 : 126,445.31 = 31,694.05 : x - Step 2: Convert to fraction form
84,284.56/126,445.31 = 31,694.05/x - Step 3: Cross multiply
84,284.56x = 126,445.31 × 31,694.05 - Step 4: Simplify right side
84,284.56x = 4,007,563,977.41 - Step 5: Solve for x
x = 4,007,563,977.41/84,284.56 - Step 6: Final answer
x = 47,548.02
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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.