Finding the Fourth Proportional to 87,951.24, 121,369.75 and 52,119.99
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Solution
The fourth proportional to 87,951.24, 121,369.75 and 52,119.99 is: 71,923.83
Step by Step Solution
- Step 1: Write the proportion equation
87,951.24 : 121,369.75 = 52,119.99 : x - Step 2: Convert to fraction form
87,951.24/121,369.75 = 52,119.99/x - Step 3: Cross multiply
87,951.24x = 121,369.75 × 52,119.99 - Step 4: Simplify right side
87,951.24x = 6,325,790,026.00 - Step 5: Solve for x
x = 6,325,790,026.00/87,951.24 - Step 6: Final answer
x = 71,923.83
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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.