Finding the Fourth Proportional to 89,047.74, 122,886.28 and 48,761.79
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Solution
The fourth proportional to 89,047.74, 122,886.28 and 48,761.79 is: 67,291.49
Step by Step Solution
- Step 1: Write the proportion equation
89,047.74 : 122,886.28 = 48,761.79 : x - Step 2: Convert to fraction form
89,047.74/122,886.28 = 48,761.79/x - Step 3: Cross multiply
89,047.74x = 122,886.28 × 48,761.79 - Step 4: Simplify right side
89,047.74x = 5,992,154,979.24 - Step 5: Solve for x
x = 5,992,154,979.24/89,047.74 - Step 6: Final answer
x = 67,291.49
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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.