Finding the Fourth Proportional to 77,103.68, 115,625.28 and 27,173.12
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Solution
The fourth proportional to 77,103.68, 115,625.28 and 27,173.12 is: 40,749.02
Step by Step Solution
- Step 1: Write the proportion equation
77,103.68 : 115,625.28 = 27,173.12 : x - Step 2: Convert to fraction form
77,103.68/115,625.28 = 27,173.12/x - Step 3: Cross multiply
77,103.68x = 115,625.28 × 27,173.12 - Step 4: Simplify right side
77,103.68x = 3,141,899,608.47 - Step 5: Solve for x
x = 3,141,899,608.47/77,103.68 - Step 6: Final answer
x = 40,749.02
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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.