Finding the Fourth Proportional to 74,752.20, 112,201.20 and 58,291.20
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Solution
The fourth proportional to 74,752.20, 112,201.20 and 58,291.20 is: 87,493.65
Step by Step Solution
- Step 1: Write the proportion equation
74,752.20 : 112,201.20 = 58,291.20 : x - Step 2: Convert to fraction form
74,752.20/112,201.20 = 58,291.20/x - Step 3: Cross multiply
74,752.20x = 112,201.20 × 58,291.20 - Step 4: Simplify right side
74,752.20x = 6,540,342,589.44 - Step 5: Solve for x
x = 6,540,342,589.44/74,752.20 - Step 6: Final answer
x = 87,493.65
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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.