Finding the Fourth Proportional to 74,148.34, 111,227.70 and 29,775.09
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Solution
The fourth proportional to 74,148.34, 111,227.70 and 29,775.09 is: 44,664.72
Step by Step Solution
- Step 1: Write the proportion equation
74,148.34 : 111,227.70 = 29,775.09 : x - Step 2: Convert to fraction form
74,148.34/111,227.70 = 29,775.09/x - Step 3: Cross multiply
74,148.34x = 111,227.70 × 29,775.09 - Step 4: Simplify right side
74,148.34x = 3,311,815,249.18 - Step 5: Solve for x
x = 3,311,815,249.18/74,148.34 - Step 6: Final answer
x = 44,664.72
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1.5x scale
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.