Finding the Fourth Proportional to 73,924.68, 102,015.48 and 40,390.68
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Solution
The fourth proportional to 73,924.68, 102,015.48 and 40,390.68 is: 55,738.82
Step by Step Solution
- Step 1: Write the proportion equation
73,924.68 : 102,015.48 = 40,390.68 : x - Step 2: Convert to fraction form
73,924.68/102,015.48 = 40,390.68/x - Step 3: Cross multiply
73,924.68x = 102,015.48 × 40,390.68 - Step 4: Simplify right side
73,924.68x = 4,120,474,607.73 - Step 5: Solve for x
x = 4,120,474,607.73/73,924.68 - Step 6: Final answer
x = 55,738.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.