Finding the Fourth Proportional to 85,027.47, 126,791.07 and 84,268.63
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Solution
The fourth proportional to 85,027.47, 126,791.07 and 84,268.63 is: 125,659.50
Step by Step Solution
- Step 1: Write the proportion equation
85,027.47 : 126,791.07 = 84,268.63 : x - Step 2: Convert to fraction form
85,027.47/126,791.07 = 84,268.63/x - Step 3: Cross multiply
85,027.47x = 126,791.07 × 84,268.63 - Step 4: Simplify right side
85,027.47x = 10,684,509,765.13 - Step 5: Solve for x
x = 10,684,509,765.13/85,027.47 - Step 6: Final answer
x = 125,659.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.