Finding the Fourth Proportional to 73,689.57, 110,455.52 and 38,115.08
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Solution
The fourth proportional to 73,689.57, 110,455.52 and 38,115.08 is: 57,131.83
Step by Step Solution
- Step 1: Write the proportion equation
73,689.57 : 110,455.52 = 38,115.08 : x - Step 2: Convert to fraction form
73,689.57/110,455.52 = 38,115.08/x - Step 3: Cross multiply
73,689.57x = 110,455.52 × 38,115.08 - Step 4: Simplify right side
73,689.57x = 4,210,020,238.39 - Step 5: Solve for x
x = 4,210,020,238.39/73,689.57 - Step 6: Final answer
x = 57,131.83
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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.