Finding the Fourth Proportional to 79,887.28, 119,904.48 and 40,471.84
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Solution
The fourth proportional to 79,887.28, 119,904.48 and 40,471.84 is: 60,745.03
Step by Step Solution
- Step 1: Write the proportion equation
79,887.28 : 119,904.48 = 40,471.84 : x - Step 2: Convert to fraction form
79,887.28/119,904.48 = 40,471.84/x - Step 3: Cross multiply
79,887.28x = 119,904.48 × 40,471.84 - Step 4: Simplify right side
79,887.28x = 4,852,754,929.84 - Step 5: Solve for x
x = 4,852,754,929.84/79,887.28 - Step 6: Final answer
x = 60,745.03
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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.