Finding the Fourth Proportional to 73,889.20, 110,848.20 and 31,769.20
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Solution
The fourth proportional to 73,889.20, 110,848.20 and 31,769.20 is: 47,659.99
Step by Step Solution
- Step 1: Write the proportion equation
73,889.20 : 110,848.20 = 31,769.20 : x - Step 2: Convert to fraction form
73,889.20/110,848.20 = 31,769.20/x - Step 3: Cross multiply
73,889.20x = 110,848.20 × 31,769.20 - Step 4: Simplify right side
73,889.20x = 3,521,558,635.44 - Step 5: Solve for x
x = 3,521,558,635.44/73,889.20 - Step 6: Final answer
x = 47,659.99
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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.