Finding the Fourth Proportional to 77,371.21, 106,076.92 and 75,971.53
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Solution
The fourth proportional to 77,371.21, 106,076.92 and 75,971.53 is: 104,157.94
Step by Step Solution
- Step 1: Write the proportion equation
77,371.21 : 106,076.92 = 75,971.53 : x - Step 2: Convert to fraction form
77,371.21/106,076.92 = 75,971.53/x - Step 3: Cross multiply
77,371.21x = 106,076.92 × 75,971.53 - Step 4: Simplify right side
77,371.21x = 8,058,825,910.09 - Step 5: Solve for x
x = 8,058,825,910.09/77,371.21 - Step 6: Final answer
x = 104,157.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.