Finding the Fourth Proportional to 99,786.74, 149,572.98 and 49,768.02
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Solution
The fourth proportional to 99,786.74, 149,572.98 and 49,768.02 is: 74,598.60
Step by Step Solution
- Step 1: Write the proportion equation
99,786.74 : 149,572.98 = 49,768.02 : x - Step 2: Convert to fraction form
99,786.74/149,572.98 = 49,768.02/x - Step 3: Cross multiply
99,786.74x = 149,572.98 × 49,768.02 - Step 4: Simplify right side
99,786.74x = 7,443,951,060.10 - Step 5: Solve for x
x = 7,443,951,060.10/99,786.74 - Step 6: Final answer
x = 74,598.60
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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.