Finding the Fourth Proportional to 81,509.97, 122,265.36 and 37,105.65
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Solution
The fourth proportional to 81,509.97, 122,265.36 and 37,105.65 is: 55,658.66
Step by Step Solution
- Step 1: Write the proportion equation
81,509.97 : 122,265.36 = 37,105.65 : x - Step 2: Convert to fraction form
81,509.97/122,265.36 = 37,105.65/x - Step 3: Cross multiply
81,509.97x = 122,265.36 × 37,105.65 - Step 4: Simplify right side
81,509.97x = 4,536,735,655.28 - Step 5: Solve for x
x = 4,536,735,655.28/81,509.97 - Step 6: Final answer
x = 55,658.66
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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.