Finding the Fourth Proportional to 88,238.16, 121,768.92 and 50,512.68
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Solution
The fourth proportional to 88,238.16, 121,768.92 and 50,512.68 is: 69,707.65
Step by Step Solution
- Step 1: Write the proportion equation
88,238.16 : 121,768.92 = 50,512.68 : x - Step 2: Convert to fraction form
88,238.16/121,768.92 = 50,512.68/x - Step 3: Cross multiply
88,238.16x = 121,768.92 × 50,512.68 - Step 4: Simplify right side
88,238.16x = 6,150,874,489.91 - Step 5: Solve for x
x = 6,150,874,489.91/88,238.16 - Step 6: Final answer
x = 69,707.65
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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.