Finding the Fourth Proportional to 88,743.76, 122,471.36 and 48,461.28
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Solution
The fourth proportional to 88,743.76, 122,471.36 and 48,461.28 is: 66,879.28
Step by Step Solution
- Step 1: Write the proportion equation
88,743.76 : 122,471.36 = 48,461.28 : x - Step 2: Convert to fraction form
88,743.76/122,471.36 = 48,461.28/x - Step 3: Cross multiply
88,743.76x = 122,471.36 × 48,461.28 - Step 4: Simplify right side
88,743.76x = 5,935,118,868.94 - Step 5: Solve for x
x = 5,935,118,868.94/88,743.76 - Step 6: Final answer
x = 66,879.28
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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.