Finding the Fourth Proportional to 79,828.90, 110,163.21 and 44,020.42
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Solution
The fourth proportional to 79,828.90, 110,163.21 and 44,020.42 is: 60,747.81
Step by Step Solution
- Step 1: Write the proportion equation
79,828.90 : 110,163.21 = 44,020.42 : x - Step 2: Convert to fraction form
79,828.90/110,163.21 = 44,020.42/x - Step 3: Cross multiply
79,828.90x = 110,163.21 × 44,020.42 - Step 4: Simplify right side
79,828.90x = 4,849,430,772.75 - Step 5: Solve for x
x = 4,849,430,772.75/79,828.90 - Step 6: Final answer
x = 60,747.81
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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.