Finding the Fourth Proportional to 79,743.15, 110,025.68 and 51,414.75
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Solution
The fourth proportional to 79,743.15, 110,025.68 and 51,414.75 is: 70,939.54
Step by Step Solution
- Step 1: Write the proportion equation
79,743.15 : 110,025.68 = 51,414.75 : x - Step 2: Convert to fraction form
79,743.15/110,025.68 = 51,414.75/x - Step 3: Cross multiply
79,743.15x = 110,025.68 × 51,414.75 - Step 4: Simplify right side
79,743.15x = 5,656,942,573.71 - Step 5: Solve for x
x = 5,656,942,573.71/79,743.15 - Step 6: Final answer
x = 70,939.54
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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.