Finding the Fourth Proportional to 75,057.54, 103,605.45 and 43,239.12
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Solution
The fourth proportional to 75,057.54, 103,605.45 and 43,239.12 is: 59,684.99
Step by Step Solution
- Step 1: Write the proportion equation
75,057.54 : 103,605.45 = 43,239.12 : x - Step 2: Convert to fraction form
75,057.54/103,605.45 = 43,239.12/x - Step 3: Cross multiply
75,057.54x = 103,605.45 × 43,239.12 - Step 4: Simplify right side
75,057.54x = 4,479,808,485.20 - Step 5: Solve for x
x = 4,479,808,485.20/75,057.54 - Step 6: Final answer
x = 59,684.99
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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.