Finding the Fourth Proportional to 83,838.70, 125,903.85 and 44,472.70
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Solution
The fourth proportional to 83,838.70, 125,903.85 and 44,472.70 is: 66,786.39
Step by Step Solution
- Step 1: Write the proportion equation
83,838.70 : 125,903.85 = 44,472.70 : x - Step 2: Convert to fraction form
83,838.70/125,903.85 = 44,472.70/x - Step 3: Cross multiply
83,838.70x = 125,903.85 × 44,472.70 - Step 4: Simplify right side
83,838.70x = 5,599,284,149.90 - Step 5: Solve for x
x = 5,599,284,149.90/83,838.70 - Step 6: Final answer
x = 66,786.39
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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.