Finding the Fourth Proportional to 83,379.42, 115,040.79 and 53,588.70
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Solution
The fourth proportional to 83,379.42, 115,040.79 and 53,588.70 is: 73,937.75
Step by Step Solution
- Step 1: Write the proportion equation
83,379.42 : 115,040.79 = 53,588.70 : x - Step 2: Convert to fraction form
83,379.42/115,040.79 = 53,588.70/x - Step 3: Cross multiply
83,379.42x = 115,040.79 × 53,588.70 - Step 4: Simplify right side
83,379.42x = 6,164,886,383.07 - Step 5: Solve for x
x = 6,164,886,383.07/83,379.42 - Step 6: Final answer
x = 73,937.75
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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.