Finding the Fourth Proportional to 73,170.12, 109,752.64 and 31,023.08
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Solution
The fourth proportional to 73,170.12, 109,752.64 and 31,023.08 is: 46,533.54
Step by Step Solution
- Step 1: Write the proportion equation
73,170.12 : 109,752.64 = 31,023.08 : x - Step 2: Convert to fraction form
73,170.12/109,752.64 = 31,023.08/x - Step 3: Cross multiply
73,170.12x = 109,752.64 × 31,023.08 - Step 4: Simplify right side
73,170.12x = 3,404,864,930.93 - Step 5: Solve for x
x = 3,404,864,930.93/73,170.12 - Step 6: Final answer
x = 46,533.54
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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.