Finding the Fourth Proportional to 71,367.12, 106,977.78 and 46,457.19
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Solution
The fourth proportional to 71,367.12, 106,977.78 and 46,457.19 is: 69,638.33
Step by Step Solution
- Step 1: Write the proportion equation
71,367.12 : 106,977.78 = 46,457.19 : x - Step 2: Convert to fraction form
71,367.12/106,977.78 = 46,457.19/x - Step 3: Cross multiply
71,367.12x = 106,977.78 × 46,457.19 - Step 4: Simplify right side
71,367.12x = 4,969,887,051.24 - Step 5: Solve for x
x = 4,969,887,051.24/71,367.12 - Step 6: Final answer
x = 69,638.33
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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.