Finding the Fourth Proportional to 69,004.92, 103,474.62 and 31,553.88
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Solution
The fourth proportional to 69,004.92, 103,474.62 and 31,553.88 is: 47,315.84
Step by Step Solution
- Step 1: Write the proportion equation
69,004.92 : 103,474.62 = 31,553.88 : x - Step 2: Convert to fraction form
69,004.92/103,474.62 = 31,553.88/x - Step 3: Cross multiply
69,004.92x = 103,474.62 × 31,553.88 - Step 4: Simplify right side
69,004.92x = 3,265,025,742.53 - Step 5: Solve for x
x = 3,265,025,742.53/69,004.92 - Step 6: Final answer
x = 47,315.84
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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.