Finding the Fourth Proportional to 99,584.10, 149,285.80 and 49,679.49
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Solution
The fourth proportional to 99,584.10, 149,285.80 and 49,679.49 is: 74,474.17
Step by Step Solution
- Step 1: Write the proportion equation
99,584.10 : 149,285.80 = 49,679.49 : x - Step 2: Convert to fraction form
99,584.10/149,285.80 = 49,679.49/x - Step 3: Cross multiply
99,584.10x = 149,285.80 × 49,679.49 - Step 4: Simplify right side
99,584.10x = 7,416,443,030.16 - Step 5: Solve for x
x = 7,416,443,030.16/99,584.10 - Step 6: Final answer
x = 74,474.17
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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.