Finding the Fourth Proportional to 69,167.20, 103,584.50 and 39,495.12
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Solution
The fourth proportional to 69,167.20, 103,584.50 and 39,495.12 is: 59,147.72
Step by Step Solution
- Step 1: Write the proportion equation
69,167.20 : 103,584.50 = 39,495.12 : x - Step 2: Convert to fraction form
69,167.20/103,584.50 = 39,495.12/x - Step 3: Cross multiply
69,167.20x = 103,584.50 × 39,495.12 - Step 4: Simplify right side
69,167.20x = 4,091,082,257.64 - Step 5: Solve for x
x = 4,091,082,257.64/69,167.20 - Step 6: Final answer
x = 59,147.72
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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.