Finding the Fourth Proportional to 75,994.19, 113,991.28 and 20,590.19
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Solution
The fourth proportional to 75,994.19, 113,991.28 and 20,590.19 is: 30,885.28
Step by Step Solution
- Step 1: Write the proportion equation
75,994.19 : 113,991.28 = 20,590.19 : x - Step 2: Convert to fraction form
75,994.19/113,991.28 = 20,590.19/x - Step 3: Cross multiply
75,994.19x = 113,991.28 × 20,590.19 - Step 4: Simplify right side
75,994.19x = 2,347,102,113.54 - Step 5: Solve for x
x = 2,347,102,113.54/75,994.19 - Step 6: Final answer
x = 30,885.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.