Finding the Fourth Proportional to 91,089.32, 136,638.07 and 27,904.84
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Solution
The fourth proportional to 91,089.32, 136,638.07 and 27,904.84 is: 41,858.52
Step by Step Solution
- Step 1: Write the proportion equation
91,089.32 : 136,638.07 = 27,904.84 : x - Step 2: Convert to fraction form
91,089.32/136,638.07 = 27,904.84/x - Step 3: Cross multiply
91,089.32x = 136,638.07 × 27,904.84 - Step 4: Simplify right side
91,089.32x = 3,812,863,995.46 - Step 5: Solve for x
x = 3,812,863,995.46/91,089.32 - Step 6: Final answer
x = 41,858.52
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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.