Finding the Fourth Proportional to 72,246.60, 108,388.80 and 27,874.80
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Solution
The fourth proportional to 72,246.60, 108,388.80 and 27,874.80 is: 41,819.49
Step by Step Solution
- Step 1: Write the proportion equation
72,246.60 : 108,388.80 = 27,874.80 : x - Step 2: Convert to fraction form
72,246.60/108,388.80 = 27,874.80/x - Step 3: Cross multiply
72,246.60x = 108,388.80 × 27,874.80 - Step 4: Simplify right side
72,246.60x = 3,021,316,122.24 - Step 5: Solve for x
x = 3,021,316,122.24/72,246.60 - Step 6: Final answer
x = 41,819.49
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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.