Finding the Fourth Proportional to 76,785.66, 115,130.97 and 29,983.50
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Solution
The fourth proportional to 76,785.66, 115,130.97 and 29,983.50 is: 44,956.69
Step by Step Solution
- Step 1: Write the proportion equation
76,785.66 : 115,130.97 = 29,983.50 : x - Step 2: Convert to fraction form
76,785.66/115,130.97 = 29,983.50/x - Step 3: Cross multiply
76,785.66x = 115,130.97 × 29,983.50 - Step 4: Simplify right side
76,785.66x = 3,452,029,439.00 - Step 5: Solve for x
x = 3,452,029,439.00/76,785.66 - Step 6: Final answer
x = 44,956.69
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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.