Finding the Fourth Proportional to 83,734.41, 115,520.76 and 47,905.23
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Solution
The fourth proportional to 83,734.41, 115,520.76 and 47,905.23 is: 66,090.49
Step by Step Solution
- Step 1: Write the proportion equation
83,734.41 : 115,520.76 = 47,905.23 : x - Step 2: Convert to fraction form
83,734.41/115,520.76 = 47,905.23/x - Step 3: Cross multiply
83,734.41x = 115,520.76 × 47,905.23 - Step 4: Simplify right side
83,734.41x = 5,534,048,577.57 - Step 5: Solve for x
x = 5,534,048,577.57/83,734.41 - Step 6: Final answer
x = 66,090.49
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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.