Finding the Fourth Proportional to 74,385.36, 111,771.24 and 69,525.99
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Solution
The fourth proportional to 74,385.36, 111,771.24 and 69,525.99 is: 104,469.56
Step by Step Solution
- Step 1: Write the proportion equation
74,385.36 : 111,771.24 = 69,525.99 : x - Step 2: Convert to fraction form
74,385.36/111,771.24 = 69,525.99/x - Step 3: Cross multiply
74,385.36x = 111,771.24 × 69,525.99 - Step 4: Simplify right side
74,385.36x = 7,771,006,114.53 - Step 5: Solve for x
x = 7,771,006,114.53/74,385.36 - Step 6: Final answer
x = 104,469.56
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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.