Finding the Fourth Proportional to 86,751.88, 130,126.02 and 27,587.68
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Solution
The fourth proportional to 86,751.88, 130,126.02 and 27,587.68 is: 41,380.95
Step by Step Solution
- Step 1: Write the proportion equation
86,751.88 : 130,126.02 = 27,587.68 : x - Step 2: Convert to fraction form
86,751.88/130,126.02 = 27,587.68/x - Step 3: Cross multiply
86,751.88x = 130,126.02 × 27,587.68 - Step 4: Simplify right side
86,751.88x = 3,589,874,999.43 - Step 5: Solve for x
x = 3,589,874,999.43/86,751.88 - Step 6: Final answer
x = 41,380.95
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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.