Finding the Fourth Proportional to 88,212.36, 121,738.50 and 50,485.80
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Solution
The fourth proportional to 88,212.36, 121,738.50 and 50,485.80 is: 69,673.52
Step by Step Solution
- Step 1: Write the proportion equation
88,212.36 : 121,738.50 = 50,485.80 : x - Step 2: Convert to fraction form
88,212.36/121,738.50 = 50,485.80/x - Step 3: Cross multiply
88,212.36x = 121,738.50 × 50,485.80 - Step 4: Simplify right side
88,212.36x = 6,146,065,563.30 - Step 5: Solve for x
x = 6,146,065,563.30/88,212.36 - Step 6: Final answer
x = 69,673.52
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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.