Finding the Fourth Proportional to 73,509.78, 110,301.10 and 29,135.54
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Solution
The fourth proportional to 73,509.78, 110,301.10 and 29,135.54 is: 43,717.75
Step by Step Solution
- Step 1: Write the proportion equation
73,509.78 : 110,301.10 = 29,135.54 : x - Step 2: Convert to fraction form
73,509.78/110,301.10 = 29,135.54/x - Step 3: Cross multiply
73,509.78x = 110,301.10 × 29,135.54 - Step 4: Simplify right side
73,509.78x = 3,213,682,111.09 - Step 5: Solve for x
x = 3,213,682,111.09/73,509.78 - Step 6: Final answer
x = 43,717.75
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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.