Finding the Fourth Proportional to 86,806.12, 130,209.18 and 27,659.92
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Solution
The fourth proportional to 86,806.12, 130,209.18 and 27,659.92 is: 41,489.88
Step by Step Solution
- Step 1: Write the proportion equation
86,806.12 : 130,209.18 = 27,659.92 : x - Step 2: Convert to fraction form
86,806.12/130,209.18 = 27,659.92/x - Step 3: Cross multiply
86,806.12x = 130,209.18 × 27,659.92 - Step 4: Simplify right side
86,806.12x = 3,601,575,502.07 - Step 5: Solve for x
x = 3,601,575,502.07/86,806.12 - Step 6: Final answer
x = 41,489.88
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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.