Finding the Fourth Proportional to 86,768.20, 130,173.09 and 29,841.13
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Solution
The fourth proportional to 86,768.20, 130,173.09 and 29,841.13 is: 44,768.85
Step by Step Solution
- Step 1: Write the proportion equation
86,768.20 : 130,173.09 = 29,841.13 : x - Step 2: Convert to fraction form
86,768.20/130,173.09 = 29,841.13/x - Step 3: Cross multiply
86,768.20x = 130,173.09 × 29,841.13 - Step 4: Simplify right side
86,768.20x = 3,884,512,101.19 - Step 5: Solve for x
x = 3,884,512,101.19/86,768.20 - Step 6: Final answer
x = 44,768.85
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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.