Finding the Fourth Proportional to 98,079.10, 135,347.89 and 57,794.56
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Solution
The fourth proportional to 98,079.10, 135,347.89 and 57,794.56 is: 79,755.75
Step by Step Solution
- Step 1: Write the proportion equation
98,079.10 : 135,347.89 = 57,794.56 : x - Step 2: Convert to fraction form
98,079.10/135,347.89 = 57,794.56/x - Step 3: Cross multiply
98,079.10x = 135,347.89 × 57,794.56 - Step 4: Simplify right side
98,079.10x = 7,822,371,749.48 - Step 5: Solve for x
x = 7,822,371,749.48/98,079.10 - Step 6: Final answer
x = 79,755.75
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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.