Finding the Fourth Proportional to 77,894.37, 107,460.53 and 49,194.09
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Solution
The fourth proportional to 77,894.37, 107,460.53 and 49,194.09 is: 67,866.56
Step by Step Solution
- Step 1: Write the proportion equation
77,894.37 : 107,460.53 = 49,194.09 : x - Step 2: Convert to fraction form
77,894.37/107,460.53 = 49,194.09/x - Step 3: Cross multiply
77,894.37x = 107,460.53 × 49,194.09 - Step 4: Simplify right side
77,894.37x = 5,286,422,738.30 - Step 5: Solve for x
x = 5,286,422,738.30/77,894.37 - Step 6: Final answer
x = 67,866.56
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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.