Finding the Fourth Proportional to 99,286.07, 137,014.43 and 53,964.14
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Solution
The fourth proportional to 99,286.07, 137,014.43 and 53,964.14 is: 74,470.32
Step by Step Solution
- Step 1: Write the proportion equation
99,286.07 : 137,014.43 = 53,964.14 : x - Step 2: Convert to fraction form
99,286.07/137,014.43 = 53,964.14/x - Step 3: Cross multiply
99,286.07x = 137,014.43 × 53,964.14 - Step 4: Simplify right side
99,286.07x = 7,393,864,927.65 - Step 5: Solve for x
x = 7,393,864,927.65/99,286.07 - Step 6: Final answer
x = 74,470.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.