Finding the Fourth Proportional to 90,680.36, 125,136.39 and 50,393.09
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Solution
The fourth proportional to 90,680.36, 125,136.39 and 50,393.09 is: 69,541.07
Step by Step Solution
- Step 1: Write the proportion equation
90,680.36 : 125,136.39 = 50,393.09 : x - Step 2: Convert to fraction form
90,680.36/125,136.39 = 50,393.09/x - Step 3: Cross multiply
90,680.36x = 125,136.39 × 50,393.09 - Step 4: Simplify right side
90,680.36x = 6,306,009,161.47 - Step 5: Solve for x
x = 6,306,009,161.47/90,680.36 - Step 6: Final answer
x = 69,541.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.