Finding the Fourth Proportional to 91,782.26, 126,673.80 and 51,512.30
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Solution
The fourth proportional to 91,782.26, 126,673.80 and 51,512.30 is: 71,094.99
Step by Step Solution
- Step 1: Write the proportion equation
91,782.26 : 126,673.80 = 51,512.30 : x - Step 2: Convert to fraction form
91,782.26/126,673.80 = 51,512.30/x - Step 3: Cross multiply
91,782.26x = 126,673.80 × 51,512.30 - Step 4: Simplify right side
91,782.26x = 6,525,258,787.74 - Step 5: Solve for x
x = 6,525,258,787.74/91,782.26 - Step 6: Final answer
x = 71,094.99
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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.