Finding the Fourth Proportional to 90,610.21, 125,042.88 and 50,324.68
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Solution
The fourth proportional to 90,610.21, 125,042.88 and 50,324.68 is: 69,448.50
Step by Step Solution
- Step 1: Write the proportion equation
90,610.21 : 125,042.88 = 50,324.68 : x - Step 2: Convert to fraction form
90,610.21/125,042.88 = 50,324.68/x - Step 3: Cross multiply
90,610.21x = 125,042.88 × 50,324.68 - Step 4: Simplify right side
90,610.21x = 6,292,742,922.28 - Step 5: Solve for x
x = 6,292,742,922.28/90,610.21 - Step 6: Final answer
x = 69,448.50
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1.5x scale
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.