Finding the Fourth Proportional to 75,421.99, 104,079.49 and 41,890.15
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Solution
The fourth proportional to 75,421.99, 104,079.49 and 41,890.15 is: 57,806.82
Step by Step Solution
- Step 1: Write the proportion equation
75,421.99 : 104,079.49 = 41,890.15 : x - Step 2: Convert to fraction form
75,421.99/104,079.49 = 41,890.15/x - Step 3: Cross multiply
75,421.99x = 104,079.49 × 41,890.15 - Step 4: Simplify right side
75,421.99x = 4,359,905,448.02 - Step 5: Solve for x
x = 4,359,905,448.02/75,421.99 - Step 6: Final answer
x = 57,806.82
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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.