Finding the Fourth Proportional to 86,903.40, 130,357.38 and 27,738.99
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Solution
The fourth proportional to 86,903.40, 130,357.38 and 27,738.99 is: 41,609.21
Step by Step Solution
- Step 1: Write the proportion equation
86,903.40 : 130,357.38 = 27,738.99 : x - Step 2: Convert to fraction form
86,903.40/130,357.38 = 27,738.99/x - Step 3: Cross multiply
86,903.40x = 130,357.38 × 27,738.99 - Step 4: Simplify right side
86,903.40x = 3,615,982,060.25 - Step 5: Solve for x
x = 3,615,982,060.25/86,903.40 - Step 6: Final answer
x = 41,609.21
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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.