Finding the Fourth Proportional to 75,440.36, 104,107.28 and 40,984.80
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Solution
The fourth proportional to 75,440.36, 104,107.28 and 40,984.80 is: 56,558.80
Step by Step Solution
- Step 1: Write the proportion equation
75,440.36 : 104,107.28 = 40,984.80 : x - Step 2: Convert to fraction form
75,440.36/104,107.28 = 40,984.80/x - Step 3: Cross multiply
75,440.36x = 104,107.28 × 40,984.80 - Step 4: Simplify right side
75,440.36x = 4,266,815,844.42 - Step 5: Solve for x
x = 4,266,815,844.42/75,440.36 - Step 6: Final answer
x = 56,558.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.