Finding the Fourth Proportional to 82,908.36, 124,398.99 and 30,325.68
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Solution
The fourth proportional to 82,908.36, 124,398.99 and 30,325.68 is: 45,501.85
Step by Step Solution
- Step 1: Write the proportion equation
82,908.36 : 124,398.99 = 30,325.68 : x - Step 2: Convert to fraction form
82,908.36/124,398.99 = 30,325.68/x - Step 3: Cross multiply
82,908.36x = 124,398.99 × 30,325.68 - Step 4: Simplify right side
82,908.36x = 3,772,483,963.06 - Step 5: Solve for x
x = 3,772,483,963.06/82,908.36 - Step 6: Final answer
x = 45,501.85
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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.