Finding the Fourth Proportional to 73,776.30, 110,652.57 and 21,173.82
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Solution
The fourth proportional to 73,776.30, 110,652.57 and 21,173.82 is: 31,757.32
Step by Step Solution
- Step 1: Write the proportion equation
73,776.30 : 110,652.57 = 21,173.82 : x - Step 2: Convert to fraction form
73,776.30/110,652.57 = 21,173.82/x - Step 3: Cross multiply
73,776.30x = 110,652.57 × 21,173.82 - Step 4: Simplify right side
73,776.30x = 2,342,937,599.72 - Step 5: Solve for x
x = 2,342,937,599.72/73,776.30 - Step 6: Final answer
x = 31,757.32
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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.