Finding the Fourth Proportional to 86,765.40, 130,157.66 and 27,587.23
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Solution
The fourth proportional to 86,765.40, 130,157.66 and 27,587.23 is: 41,383.88
Step by Step Solution
- Step 1: Write the proportion equation
86,765.40 : 130,157.66 = 27,587.23 : x - Step 2: Convert to fraction form
86,765.40/130,157.66 = 27,587.23/x - Step 3: Cross multiply
86,765.40x = 130,157.66 × 27,587.23 - Step 4: Simplify right side
86,765.40x = 3,590,689,046.26 - Step 5: Solve for x
x = 3,590,689,046.26/86,765.40 - Step 6: Final answer
x = 41,383.88
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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.