Finding the Fourth Proportional to 110,515.20, 165,772.80 and 27,409.20
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Solution
The fourth proportional to 110,515.20, 165,772.80 and 27,409.20 is: 41,113.80
Step by Step Solution
- Step 1: Write the proportion equation
110,515.20 : 165,772.80 = 27,409.20 : x - Step 2: Convert to fraction form
110,515.20/165,772.80 = 27,409.20/x - Step 3: Cross multiply
110,515.20x = 165,772.80 × 27,409.20 - Step 4: Simplify right side
110,515.20x = 4,543,699,829.76 - Step 5: Solve for x
x = 4,543,699,829.76/110,515.20 - Step 6: Final answer
x = 41,113.80
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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.