Finding the Fourth Proportional to 75,659.21, 104,405.93 and 41,670.63
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Solution
The fourth proportional to 75,659.21, 104,405.93 and 41,670.63 is: 57,503.39
Step by Step Solution
- Step 1: Write the proportion equation
75,659.21 : 104,405.93 = 41,670.63 : x - Step 2: Convert to fraction form
75,659.21/104,405.93 = 41,670.63/x - Step 3: Cross multiply
75,659.21x = 104,405.93 × 41,670.63 - Step 4: Simplify right side
75,659.21x = 4,350,660,670.48 - Step 5: Solve for x
x = 4,350,660,670.48/75,659.21 - Step 6: Final answer
x = 57,503.39
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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.