Finding the Fourth Proportional to 87,019.21, 130,464.97 and 27,820.81
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Solution
The fourth proportional to 87,019.21, 130,464.97 and 27,820.81 is: 41,710.80
Step by Step Solution
- Step 1: Write the proportion equation
87,019.21 : 130,464.97 = 27,820.81 : x - Step 2: Convert to fraction form
87,019.21/130,464.97 = 27,820.81/x - Step 3: Cross multiply
87,019.21x = 130,464.97 × 27,820.81 - Step 4: Simplify right side
87,019.21x = 3,629,641,142.03 - Step 5: Solve for x
x = 3,629,641,142.03/87,019.21 - Step 6: Final answer
x = 41,710.80
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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.