Finding the Fourth Proportional to 88,315.19, 121,874.97 and 50,591.87
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Solution
The fourth proportional to 88,315.19, 121,874.97 and 50,591.87 is: 69,816.79
Step by Step Solution
- Step 1: Write the proportion equation
88,315.19 : 121,874.97 = 50,591.87 : x - Step 2: Convert to fraction form
88,315.19/121,874.97 = 50,591.87/x - Step 3: Cross multiply
88,315.19x = 121,874.97 × 50,591.87 - Step 4: Simplify right side
88,315.19x = 6,165,882,638.49 - Step 5: Solve for x
x = 6,165,882,638.49/88,315.19 - Step 6: Final answer
x = 69,816.79
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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.