Finding the Fourth Proportional to 74,289.05, 111,432.36 and 29,914.68
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Solution
The fourth proportional to 74,289.05, 111,432.36 and 29,914.68 is: 44,871.53
Step by Step Solution
- Step 1: Write the proportion equation
74,289.05 : 111,432.36 = 29,914.68 : x - Step 2: Convert to fraction form
74,289.05/111,432.36 = 29,914.68/x - Step 3: Cross multiply
74,289.05x = 111,432.36 × 29,914.68 - Step 4: Simplify right side
74,289.05x = 3,333,463,520.05 - Step 5: Solve for x
x = 3,333,463,520.05/74,289.05 - Step 6: Final answer
x = 44,871.53
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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.