Finding the Fourth Proportional to 71,089.92, 106,642.56 and 21,838.08
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Solution
The fourth proportional to 71,089.92, 106,642.56 and 21,838.08 is: 32,759.48
Step by Step Solution
- Step 1: Write the proportion equation
71,089.92 : 106,642.56 = 21,838.08 : x - Step 2: Convert to fraction form
71,089.92/106,642.56 = 21,838.08/x - Step 3: Cross multiply
71,089.92x = 106,642.56 × 21,838.08 - Step 4: Simplify right side
71,089.92x = 2,328,868,756.68 - Step 5: Solve for x
x = 2,328,868,756.68/71,089.92 - Step 6: Final answer
x = 32,759.48
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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.