Finding the Fourth Proportional to 69,543.76, 104,315.92 and 48,859.60
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Solution
The fourth proportional to 69,543.76, 104,315.92 and 48,859.60 is: 73,289.60
Step by Step Solution
- Step 1: Write the proportion equation
69,543.76 : 104,315.92 = 48,859.60 : x - Step 2: Convert to fraction form
69,543.76/104,315.92 = 48,859.60/x - Step 3: Cross multiply
69,543.76x = 104,315.92 × 48,859.60 - Step 4: Simplify right side
69,543.76x = 5,096,834,124.83 - Step 5: Solve for x
x = 5,096,834,124.83/69,543.76 - Step 6: Final answer
x = 73,289.60
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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.