Finding the Fourth Proportional to 83,977.07, 125,939.66 and 27,805.55
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Solution
The fourth proportional to 83,977.07, 125,939.66 and 27,805.55 is: 41,699.73
Step by Step Solution
- Step 1: Write the proportion equation
83,977.07 : 125,939.66 = 27,805.55 : x - Step 2: Convert to fraction form
83,977.07/125,939.66 = 27,805.55/x - Step 3: Cross multiply
83,977.07x = 125,939.66 × 27,805.55 - Step 4: Simplify right side
83,977.07x = 3,501,820,744.39 - Step 5: Solve for x
x = 3,501,820,744.39/83,977.07 - Step 6: Final answer
x = 41,699.73
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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.