Finding the Fourth Proportional to 86,183.36, 129,271.28 and 27,017.68
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Solution
The fourth proportional to 86,183.36, 129,271.28 and 27,017.68 is: 40,525.34
Step by Step Solution
- Step 1: Write the proportion equation
86,183.36 : 129,271.28 = 27,017.68 : x - Step 2: Convert to fraction form
86,183.36/129,271.28 = 27,017.68/x - Step 3: Cross multiply
86,183.36x = 129,271.28 × 27,017.68 - Step 4: Simplify right side
86,183.36x = 3,492,610,076.23 - Step 5: Solve for x
x = 3,492,610,076.23/86,183.36 - Step 6: Final answer
x = 40,525.34
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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.