Finding the Fourth Proportional to 90,708.36, 125,126.42 and 54,400.14
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Solution
The fourth proportional to 90,708.36, 125,126.42 and 54,400.14 is: 75,041.54
Step by Step Solution
- Step 1: Write the proportion equation
90,708.36 : 125,126.42 = 54,400.14 : x - Step 2: Convert to fraction form
90,708.36/125,126.42 = 54,400.14/x - Step 3: Cross multiply
90,708.36x = 125,126.42 × 54,400.14 - Step 4: Simplify right side
90,708.36x = 6,806,894,765.70 - Step 5: Solve for x
x = 6,806,894,765.70/90,708.36 - Step 6: Final answer
x = 75,041.54
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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.