Finding the Fourth Proportional to 83,768.38, 125,472.13 and 39,328.54
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Solution
The fourth proportional to 83,768.38, 125,472.13 and 39,328.54 is: 58,908.09
Step by Step Solution
- Step 1: Write the proportion equation
83,768.38 : 125,472.13 = 39,328.54 : x - Step 2: Convert to fraction form
83,768.38/125,472.13 = 39,328.54/x - Step 3: Cross multiply
83,768.38x = 125,472.13 × 39,328.54 - Step 4: Simplify right side
83,768.38x = 4,934,635,683.59 - Step 5: Solve for x
x = 4,934,635,683.59/83,768.38 - Step 6: Final answer
x = 58,908.09
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1.5x scale
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.