Finding the Fourth Proportional to 90,677.28, 125,133.74 and 50,390.19
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Solution
The fourth proportional to 90,677.28, 125,133.74 and 50,390.19 is: 69,537.96
Step by Step Solution
- Step 1: Write the proportion equation
90,677.28 : 125,133.74 = 50,390.19 : x - Step 2: Convert to fraction form
90,677.28/125,133.74 = 50,390.19/x - Step 3: Cross multiply
90,677.28x = 125,133.74 × 50,390.19 - Step 4: Simplify right side
90,677.28x = 6,305,512,682.06 - Step 5: Solve for x
x = 6,305,512,682.06/90,677.28 - Step 6: Final answer
x = 69,537.96
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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.