Finding the Fourth Proportional to 77,593.20, 107,065.72 and 45,757.68
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Solution
The fourth proportional to 77,593.20, 107,065.72 and 45,757.68 is: 63,137.99
Step by Step Solution
- Step 1: Write the proportion equation
77,593.20 : 107,065.72 = 45,757.68 : x - Step 2: Convert to fraction form
77,593.20/107,065.72 = 45,757.68/x - Step 3: Cross multiply
77,593.20x = 107,065.72 × 45,757.68 - Step 4: Simplify right side
77,593.20x = 4,899,078,954.73 - Step 5: Solve for x
x = 4,899,078,954.73/77,593.20 - Step 6: Final answer
x = 63,137.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.