Finding the Fourth Proportional to 86,584.44, 129,899.58 and 27,421.08
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Solution
The fourth proportional to 86,584.44, 129,899.58 and 27,421.08 is: 41,138.88
Step by Step Solution
- Step 1: Write the proportion equation
86,584.44 : 129,899.58 = 27,421.08 : x - Step 2: Convert to fraction form
86,584.44/129,899.58 = 27,421.08/x - Step 3: Cross multiply
86,584.44x = 129,899.58 × 27,421.08 - Step 4: Simplify right side
86,584.44x = 3,561,986,775.15 - Step 5: Solve for x
x = 3,561,986,775.15/86,584.44 - Step 6: Final answer
x = 41,138.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.