Finding the Fourth Proportional to 75,717.44, 113,503.86 and 28,319.68
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Solution
The fourth proportional to 75,717.44, 113,503.86 and 28,319.68 is: 42,452.48
Step by Step Solution
- Step 1: Write the proportion equation
75,717.44 : 113,503.86 = 28,319.68 : x - Step 2: Convert to fraction form
75,717.44/113,503.86 = 28,319.68/x - Step 3: Cross multiply
75,717.44x = 113,503.86 × 28,319.68 - Step 4: Simplify right side
75,717.44x = 3,214,392,852.37 - Step 5: Solve for x
x = 3,214,392,852.37/75,717.44 - Step 6: Final answer
x = 42,452.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.