Finding the Fourth Proportional to 81,193.59, 121,707.36 and 46,059.03
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Solution
The fourth proportional to 81,193.59, 121,707.36 and 46,059.03 is: 69,041.45
Step by Step Solution
- Step 1: Write the proportion equation
81,193.59 : 121,707.36 = 46,059.03 : x - Step 2: Convert to fraction form
81,193.59/121,707.36 = 46,059.03/x - Step 3: Cross multiply
81,193.59x = 121,707.36 × 46,059.03 - Step 4: Simplify right side
81,193.59x = 5,605,722,945.46 - Step 5: Solve for x
x = 5,605,722,945.46/81,193.59 - Step 6: Final answer
x = 69,041.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.