Finding the Fourth Proportional to 87,708.74, 121,028.73 and 51,900.26
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Solution
The fourth proportional to 87,708.74, 121,028.73 and 51,900.26 is: 71,616.84
Step by Step Solution
- Step 1: Write the proportion equation
87,708.74 : 121,028.73 = 51,900.26 : x - Step 2: Convert to fraction form
87,708.74/121,028.73 = 51,900.26/x - Step 3: Cross multiply
87,708.74x = 121,028.73 × 51,900.26 - Step 4: Simplify right side
87,708.74x = 6,281,422,554.47 - Step 5: Solve for x
x = 6,281,422,554.47/87,708.74 - Step 6: Final answer
x = 71,616.84
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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.