Finding the Fourth Proportional to 75,829.44, 104,644.84 and 42,297.60
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Solution
The fourth proportional to 75,829.44, 104,644.84 and 42,297.60 is: 58,370.81
Step by Step Solution
- Step 1: Write the proportion equation
75,829.44 : 104,644.84 = 42,297.60 : x - Step 2: Convert to fraction form
75,829.44/104,644.84 = 42,297.60/x - Step 3: Cross multiply
75,829.44x = 104,644.84 × 42,297.60 - Step 4: Simplify right side
75,829.44x = 4,426,225,584.38 - Step 5: Solve for x
x = 4,426,225,584.38/75,829.44 - Step 6: Final answer
x = 58,370.81
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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.