Finding the Fourth Proportional to 71,225.88, 106,875.26 and 29,137.06
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Solution
The fourth proportional to 71,225.88, 106,875.26 and 29,137.06 is: 43,720.50
Step by Step Solution
- Step 1: Write the proportion equation
71,225.88 : 106,875.26 = 29,137.06 : x - Step 2: Convert to fraction form
71,225.88/106,875.26 = 29,137.06/x - Step 3: Cross multiply
71,225.88x = 106,875.26 × 29,137.06 - Step 4: Simplify right side
71,225.88x = 3,114,031,124.20 - Step 5: Solve for x
x = 3,114,031,124.20/71,225.88 - Step 6: Final answer
x = 43,720.50
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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.