Finding the Fourth Proportional to 75,442.36, 104,110.03 and 40,986.80
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Solution
The fourth proportional to 75,442.36, 104,110.03 and 40,986.80 is: 56,561.55
Step by Step Solution
- Step 1: Write the proportion equation
75,442.36 : 104,110.03 = 40,986.80 : x - Step 2: Convert to fraction form
75,442.36/104,110.03 = 40,986.80/x - Step 3: Cross multiply
75,442.36x = 104,110.03 × 40,986.80 - Step 4: Simplify right side
75,442.36x = 4,267,136,977.60 - Step 5: Solve for x
x = 4,267,136,977.60/75,442.36 - Step 6: Final answer
x = 56,561.55
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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.