Finding the Fourth Proportional to 77,146.62, 115,720.19 and 27,199.59
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Solution
The fourth proportional to 77,146.62, 115,720.19 and 27,199.59 is: 40,799.48
Step by Step Solution
- Step 1: Write the proportion equation
77,146.62 : 115,720.19 = 27,199.59 : x - Step 2: Convert to fraction form
77,146.62/115,720.19 = 27,199.59/x - Step 3: Cross multiply
77,146.62x = 115,720.19 × 27,199.59 - Step 4: Simplify right side
77,146.62x = 3,147,541,722.72 - Step 5: Solve for x
x = 3,147,541,722.72/77,146.62 - Step 6: Final answer
x = 40,799.48
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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.