Finding the Fourth Proportional to 75,119.70, 103,666.41 and 41,127.62
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Solution
The fourth proportional to 75,119.70, 103,666.41 and 41,127.62 is: 56,756.79
Step by Step Solution
- Step 1: Write the proportion equation
75,119.70 : 103,666.41 = 41,127.62 : x - Step 2: Convert to fraction form
75,119.70/103,666.41 = 41,127.62/x - Step 3: Cross multiply
75,119.70x = 103,666.41 × 41,127.62 - Step 4: Simplify right side
75,119.70x = 4,263,552,717.24 - Step 5: Solve for x
x = 4,263,552,717.24/75,119.70 - Step 6: Final answer
x = 56,756.79
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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.