Finding the Fourth Proportional to 75,744.10, 113,486.55 and 48,009.70
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Solution
The fourth proportional to 75,744.10, 113,486.55 and 48,009.70 is: 71,932.40
Step by Step Solution
- Step 1: Write the proportion equation
75,744.10 : 113,486.55 = 48,009.70 : x - Step 2: Convert to fraction form
75,744.10/113,486.55 = 48,009.70/x - Step 3: Cross multiply
75,744.10x = 113,486.55 × 48,009.70 - Step 4: Simplify right side
75,744.10x = 5,448,455,219.54 - Step 5: Solve for x
x = 5,448,455,219.54/75,744.10 - Step 6: Final answer
x = 71,932.40
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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.