Finding the Fourth Proportional to 84,814.70, 127,138.35 and 47,392.70
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Solution
The fourth proportional to 84,814.70, 127,138.35 and 47,392.70 is: 71,042.28
Step by Step Solution
- Step 1: Write the proportion equation
84,814.70 : 127,138.35 = 47,392.70 : x - Step 2: Convert to fraction form
84,814.70/127,138.35 = 47,392.70/x - Step 3: Cross multiply
84,814.70x = 127,138.35 × 47,392.70 - Step 4: Simplify right side
84,814.70x = 6,025,429,680.05 - Step 5: Solve for x
x = 6,025,429,680.05/84,814.70 - Step 6: Final answer
x = 71,042.28
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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.