Finding the Fourth Proportional to 87,905.80, 131,858.70 and 46,433.80
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Solution
The fourth proportional to 87,905.80, 131,858.70 and 46,433.80 is: 69,650.70
Step by Step Solution
- Step 1: Write the proportion equation
87,905.80 : 131,858.70 = 46,433.80 : x - Step 2: Convert to fraction form
87,905.80/131,858.70 = 46,433.80/x - Step 3: Cross multiply
87,905.80x = 131,858.70 × 46,433.80 - Step 4: Simplify right side
87,905.80x = 6,122,700,504.06 - Step 5: Solve for x
x = 6,122,700,504.06/87,905.80 - Step 6: Final answer
x = 69,650.70
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1.5x scale
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.