Finding the Fourth Proportional to 86,799.12, 130,198.68 and 27,652.92
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Solution
The fourth proportional to 86,799.12, 130,198.68 and 27,652.92 is: 41,479.38
Step by Step Solution
- Step 1: Write the proportion equation
86,799.12 : 130,198.68 = 27,652.92 : x - Step 2: Convert to fraction form
86,799.12/130,198.68 = 27,652.92/x - Step 3: Cross multiply
86,799.12x = 130,198.68 × 27,652.92 - Step 4: Simplify right side
86,799.12x = 3,600,373,682.15 - Step 5: Solve for x
x = 3,600,373,682.15/86,799.12 - Step 6: Final answer
x = 41,479.38
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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.