Finding the Fourth Proportional to 89,027.40, 133,346.70 and 53,905.80
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Solution
The fourth proportional to 89,027.40, 133,346.70 and 53,905.80 is: 80,740.99
Step by Step Solution
- Step 1: Write the proportion equation
89,027.40 : 133,346.70 = 53,905.80 : x - Step 2: Convert to fraction form
89,027.40/133,346.70 = 53,905.80/x - Step 3: Cross multiply
89,027.40x = 133,346.70 × 53,905.80 - Step 4: Simplify right side
89,027.40x = 7,188,160,540.86 - Step 5: Solve for x
x = 7,188,160,540.86/89,027.40 - Step 6: Final answer
x = 80,740.99
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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.