Finding the Fourth Proportional to 81,509.91, 122,084.24 and 62,651.09
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Solution
The fourth proportional to 81,509.91, 122,084.24 and 62,651.09 is: 93,837.79
Step by Step Solution
- Step 1: Write the proportion equation
81,509.91 : 122,084.24 = 62,651.09 : x - Step 2: Convert to fraction form
81,509.91/122,084.24 = 62,651.09/x - Step 3: Cross multiply
81,509.91x = 122,084.24 × 62,651.09 - Step 4: Simplify right side
81,509.91x = 7,648,709,784.14 - Step 5: Solve for x
x = 7,648,709,784.14/81,509.91 - Step 6: Final answer
x = 93,837.79
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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.