Finding the Fourth Proportional to 83,635.99, 115,439.79 and 51,786.79
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Solution
The fourth proportional to 83,635.99, 115,439.79 and 51,786.79 is: 71,479.47
Step by Step Solution
- Step 1: Write the proportion equation
83,635.99 : 115,439.79 = 51,786.79 : x - Step 2: Convert to fraction form
83,635.99/115,439.79 = 51,786.79/x - Step 3: Cross multiply
83,635.99x = 115,439.79 × 51,786.79 - Step 4: Simplify right side
83,635.99x = 5,978,256,162.37 - Step 5: Solve for x
x = 5,978,256,162.37/83,635.99 - Step 6: Final answer
x = 71,479.47
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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.