Finding the Fourth Proportional to 89,079.56, 122,925.02 and 48,785.70
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Solution
The fourth proportional to 89,079.56, 122,925.02 and 48,785.70 is: 67,321.65
Step by Step Solution
- Step 1: Write the proportion equation
89,079.56 : 122,925.02 = 48,785.70 : x - Step 2: Convert to fraction form
89,079.56/122,925.02 = 48,785.70/x - Step 3: Cross multiply
89,079.56x = 122,925.02 × 48,785.70 - Step 4: Simplify right side
89,079.56x = 5,996,983,148.21 - Step 5: Solve for x
x = 5,996,983,148.21/89,079.56 - Step 6: Final answer
x = 67,321.65
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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.