Finding the Fourth Proportional to 75,330.24, 112,983.36 and 19,930.56
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Solution
The fourth proportional to 75,330.24, 112,983.36 and 19,930.56 is: 29,892.67
Step by Step Solution
- Step 1: Write the proportion equation
75,330.24 : 112,983.36 = 19,930.56 : x - Step 2: Convert to fraction form
75,330.24/112,983.36 = 19,930.56/x - Step 3: Cross multiply
75,330.24x = 112,983.36 × 19,930.56 - Step 4: Simplify right side
75,330.24x = 2,251,821,635.48 - Step 5: Solve for x
x = 2,251,821,635.48/75,330.24 - Step 6: Final answer
x = 29,892.67
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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.