Finding the Fourth Proportional to 99,707.49, 149,589.50 and 40,585.59
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Solution
The fourth proportional to 99,707.49, 149,589.50 and 40,585.59 is: 60,889.89
Step by Step Solution
- Step 1: Write the proportion equation
99,707.49 : 149,589.50 = 40,585.59 : x - Step 2: Convert to fraction form
99,707.49/149,589.50 = 40,585.59/x - Step 3: Cross multiply
99,707.49x = 149,589.50 × 40,585.59 - Step 4: Simplify right side
99,707.49x = 6,071,177,912.38 - Step 5: Solve for x
x = 6,071,177,912.38/99,707.49 - Step 6: Final answer
x = 60,889.89
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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.