Finding the Fourth Proportional to 90,393.36, 124,740.57 and 50,106.99
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Solution
The fourth proportional to 90,393.36, 124,740.57 and 50,106.99 is: 69,146.39
Step by Step Solution
- Step 1: Write the proportion equation
90,393.36 : 124,740.57 = 50,106.99 : x - Step 2: Convert to fraction form
90,393.36/124,740.57 = 50,106.99/x - Step 3: Cross multiply
90,393.36x = 124,740.57 × 50,106.99 - Step 4: Simplify right side
90,393.36x = 6,250,374,493.58 - Step 5: Solve for x
x = 6,250,374,493.58/90,393.36 - Step 6: Final answer
x = 69,146.39
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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.