Finding the Fourth Proportional to 91,995.68, 126,964.62 and 51,163.95
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Solution
The fourth proportional to 91,995.68, 126,964.62 and 51,163.95 is: 70,612.14
Step by Step Solution
- Step 1: Write the proportion equation
91,995.68 : 126,964.62 = 51,163.95 : x - Step 2: Convert to fraction form
91,995.68/126,964.62 = 51,163.95/x - Step 3: Cross multiply
91,995.68x = 126,964.62 × 51,163.95 - Step 4: Simplify right side
91,995.68x = 6,496,011,213.63 - Step 5: Solve for x
x = 6,496,011,213.63/91,995.68 - Step 6: Final answer
x = 70,612.14
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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.