Finding the Fourth Proportional to 77,103.36, 115,576.26 and 43,752.99
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Solution
The fourth proportional to 77,103.36, 115,576.26 and 43,752.99 is: 65,584.78
Step by Step Solution
- Step 1: Write the proportion equation
77,103.36 : 115,576.26 = 43,752.99 : x - Step 2: Convert to fraction form
77,103.36/115,576.26 = 43,752.99/x - Step 3: Cross multiply
77,103.36x = 115,576.26 × 43,752.99 - Step 4: Simplify right side
77,103.36x = 5,056,806,948.02 - Step 5: Solve for x
x = 5,056,806,948.02/77,103.36 - Step 6: Final answer
x = 65,584.78
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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.