Finding the Fourth Proportional to 75,380.21, 104,032.97 and 43,117.81
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Solution
The fourth proportional to 75,380.21, 104,032.97 and 43,117.81 is: 59,507.31
Step by Step Solution
- Step 1: Write the proportion equation
75,380.21 : 104,032.97 = 43,117.81 : x - Step 2: Convert to fraction form
75,380.21/104,032.97 = 43,117.81/x - Step 3: Cross multiply
75,380.21x = 104,032.97 × 43,117.81 - Step 4: Simplify right side
75,380.21x = 4,485,673,834.20 - Step 5: Solve for x
x = 4,485,673,834.20/75,380.21 - Step 6: Final answer
x = 59,507.31
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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.