Finding the Fourth Proportional to 90,236.36, 124,525.14 and 49,950.20
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Solution
The fourth proportional to 90,236.36, 124,525.14 and 49,950.20 is: 68,930.70
Step by Step Solution
- Step 1: Write the proportion equation
90,236.36 : 124,525.14 = 49,950.20 : x - Step 2: Convert to fraction form
90,236.36/124,525.14 = 49,950.20/x - Step 3: Cross multiply
90,236.36x = 124,525.14 × 49,950.20 - Step 4: Simplify right side
90,236.36x = 6,220,055,648.03 - Step 5: Solve for x
x = 6,220,055,648.03/90,236.36 - Step 6: Final answer
x = 68,930.70
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1.5x scale
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.