Finding the Fourth Proportional to 91,968.99, 126,913.10 and 53,732.08
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Solution
The fourth proportional to 91,968.99, 126,913.10 and 53,732.08 is: 74,147.87
Step by Step Solution
- Step 1: Write the proportion equation
91,968.99 : 126,913.10 = 53,732.08 : x - Step 2: Convert to fraction form
91,968.99/126,913.10 = 53,732.08/x - Step 3: Cross multiply
91,968.99x = 126,913.10 × 53,732.08 - Step 4: Simplify right side
91,968.99x = 6,819,304,842.25 - Step 5: Solve for x
x = 6,819,304,842.25/91,968.99 - Step 6: Final answer
x = 74,147.87
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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.