Finding the Fourth Proportional to 84,285.58, 126,446.84 and 31,695.08
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Solution
The fourth proportional to 84,285.58, 126,446.84 and 31,695.08 is: 47,549.57
Step by Step Solution
- Step 1: Write the proportion equation
84,285.58 : 126,446.84 = 31,695.08 : x - Step 2: Convert to fraction form
84,285.58/126,446.84 = 31,695.08/x - Step 3: Cross multiply
84,285.58x = 126,446.84 × 31,695.08 - Step 4: Simplify right side
84,285.58x = 4,007,742,709.55 - Step 5: Solve for x
x = 4,007,742,709.55/84,285.58 - Step 6: Final answer
x = 47,549.57
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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.