Finding the Fourth Proportional to 87,735.81, 121,076.16 and 50,012.49
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Solution
The fourth proportional to 87,735.81, 121,076.16 and 50,012.49 is: 69,017.66
Step by Step Solution
- Step 1: Write the proportion equation
87,735.81 : 121,076.16 = 50,012.49 : x - Step 2: Convert to fraction form
87,735.81/121,076.16 = 50,012.49/x - Step 3: Cross multiply
87,735.81x = 121,076.16 × 50,012.49 - Step 4: Simplify right side
87,735.81x = 6,055,320,241.24 - Step 5: Solve for x
x = 6,055,320,241.24/87,735.81 - Step 6: Final answer
x = 69,017.66
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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.