Finding the Fourth Proportional to 83,808.21, 125,629.28 and 39,355.39
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Solution
The fourth proportional to 83,808.21, 125,629.28 and 39,355.39 is: 58,994.09
Step by Step Solution
- Step 1: Write the proportion equation
83,808.21 : 125,629.28 = 39,355.39 : x - Step 2: Convert to fraction form
83,808.21/125,629.28 = 39,355.39/x - Step 3: Cross multiply
83,808.21x = 125,629.28 × 39,355.39 - Step 4: Simplify right side
83,808.21x = 4,944,188,798.97 - Step 5: Solve for x
x = 4,944,188,798.97/83,808.21 - Step 6: Final answer
x = 58,994.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.