Finding the Fourth Proportional to 91,485.28, 126,252.12 and 51,205.99
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Solution
The fourth proportional to 91,485.28, 126,252.12 and 51,205.99 is: 70,665.63
Step by Step Solution
- Step 1: Write the proportion equation
91,485.28 : 126,252.12 = 51,205.99 : x - Step 2: Convert to fraction form
91,485.28/126,252.12 = 51,205.99/x - Step 3: Cross multiply
91,485.28x = 126,252.12 × 51,205.99 - Step 4: Simplify right side
91,485.28x = 6,464,864,794.20 - Step 5: Solve for x
x = 6,464,864,794.20/91,485.28 - Step 6: Final answer
x = 70,665.63
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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.