Finding the Fourth Proportional to 73,389.34, 110,049.29 and 28,431.75
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Solution
The fourth proportional to 73,389.34, 110,049.29 and 28,431.75 is: 42,634.17
Step by Step Solution
- Step 1: Write the proportion equation
73,389.34 : 110,049.29 = 28,431.75 : x - Step 2: Convert to fraction form
73,389.34/110,049.29 = 28,431.75/x - Step 3: Cross multiply
73,389.34x = 110,049.29 × 28,431.75 - Step 4: Simplify right side
73,389.34x = 3,128,893,900.96 - Step 5: Solve for x
x = 3,128,893,900.96/73,389.34 - Step 6: Final answer
x = 42,634.17
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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.