Finding the Fourth Proportional to 87,585.19, 120,867.71 and 49,859.44
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Solution
The fourth proportional to 87,585.19, 120,867.71 and 49,859.44 is: 68,806.11
Step by Step Solution
- Step 1: Write the proportion equation
87,585.19 : 120,867.71 = 49,859.44 : x - Step 2: Convert to fraction form
87,585.19/120,867.71 = 49,859.44/x - Step 3: Cross multiply
87,585.19x = 120,867.71 × 49,859.44 - Step 4: Simplify right side
87,585.19x = 6,026,395,783.22 - Step 5: Solve for x
x = 6,026,395,783.22/87,585.19 - Step 6: Final answer
x = 68,806.11
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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.