Finding the Fourth Proportional to 83,947.22, 115,845.72 and 48,135.08
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Solution
The fourth proportional to 83,947.22, 115,845.72 and 48,135.08 is: 66,425.58
Step by Step Solution
- Step 1: Write the proportion equation
83,947.22 : 115,845.72 = 48,135.08 : x - Step 2: Convert to fraction form
83,947.22/115,845.72 = 48,135.08/x - Step 3: Cross multiply
83,947.22x = 115,845.72 × 48,135.08 - Step 4: Simplify right side
83,947.22x = 5,576,242,999.86 - Step 5: Solve for x
x = 5,576,242,999.86/83,947.22 - Step 6: Final answer
x = 66,425.58
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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.