Finding the Fourth Proportional to 87,133.09, 120,238.68 and 48,368.92
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Solution
The fourth proportional to 87,133.09, 120,238.68 and 48,368.92 is: 66,746.34
Step by Step Solution
- Step 1: Write the proportion equation
87,133.09 : 120,238.68 = 48,368.92 : x - Step 2: Convert to fraction form
87,133.09/120,238.68 = 48,368.92/x - Step 3: Cross multiply
87,133.09x = 120,238.68 × 48,368.92 - Step 4: Simplify right side
87,133.09x = 5,815,815,093.83 - Step 5: Solve for x
x = 5,815,815,093.83/87,133.09 - Step 6: Final answer
x = 66,746.34
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1.5x scale
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.