Finding the Fourth Proportional to 90,744.21, 136,115.84 and 23,275.95
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Solution
The fourth proportional to 90,744.21, 136,115.84 and 23,275.95 is: 34,913.80
Step by Step Solution
- Step 1: Write the proportion equation
90,744.21 : 136,115.84 = 23,275.95 : x - Step 2: Convert to fraction form
90,744.21/136,115.84 = 23,275.95/x - Step 3: Cross multiply
90,744.21x = 136,115.84 × 23,275.95 - Step 4: Simplify right side
90,744.21x = 3,168,225,486.05 - Step 5: Solve for x
x = 3,168,225,486.05/90,744.21 - Step 6: Final answer
x = 34,913.80
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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.