Finding the Fourth Proportional to 98,682.45, 136,183.22 and 55,663.99
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Solution
The fourth proportional to 98,682.45, 136,183.22 and 55,663.99 is: 76,817.11
Step by Step Solution
- Step 1: Write the proportion equation
98,682.45 : 136,183.22 = 55,663.99 : x - Step 2: Convert to fraction form
98,682.45/136,183.22 = 55,663.99/x - Step 3: Cross multiply
98,682.45x = 136,183.22 × 55,663.99 - Step 4: Simplify right side
98,682.45x = 7,580,500,777.47 - Step 5: Solve for x
x = 7,580,500,777.47/98,682.45 - Step 6: Final answer
x = 76,817.11
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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.