Finding the Fourth Proportional to 87,836.35, 121,214.14 and 47,550.09
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Solution
The fourth proportional to 87,836.35, 121,214.14 and 47,550.09 is: 65,619.11
Step by Step Solution
- Step 1: Write the proportion equation
87,836.35 : 121,214.14 = 47,550.09 : x - Step 2: Convert to fraction form
87,836.35/121,214.14 = 47,550.09/x - Step 3: Cross multiply
87,836.35x = 121,214.14 × 47,550.09 - Step 4: Simplify right side
87,836.35x = 5,763,742,920.12 - Step 5: Solve for x
x = 5,763,742,920.12/87,836.35 - Step 6: Final answer
x = 65,619.11
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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.