Finding the Fourth Proportional to 91,704.65, 126,558.47 and 51,420.99
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Solution
The fourth proportional to 91,704.65, 126,558.47 and 51,420.99 is: 70,964.36
Step by Step Solution
- Step 1: Write the proportion equation
91,704.65 : 126,558.47 = 51,420.99 : x - Step 2: Convert to fraction form
91,704.65/126,558.47 = 51,420.99/x - Step 3: Cross multiply
91,704.65x = 126,558.47 × 51,420.99 - Step 4: Simplify right side
91,704.65x = 6,507,761,563.18 - Step 5: Solve for x
x = 6,507,761,563.18/91,704.65 - Step 6: Final answer
x = 70,964.36
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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.