Finding the Fourth Proportional to 71,417.80, 107,024.08 and 40,187.08
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Solution
The fourth proportional to 71,417.80, 107,024.08 and 40,187.08 is: 60,222.88
Step by Step Solution
- Step 1: Write the proportion equation
71,417.80 : 107,024.08 = 40,187.08 : x - Step 2: Convert to fraction form
71,417.80/107,024.08 = 40,187.08/x - Step 3: Cross multiply
71,417.80x = 107,024.08 × 40,187.08 - Step 4: Simplify right side
71,417.80x = 4,300,985,264.89 - Step 5: Solve for x
x = 4,300,985,264.89/71,417.80 - Step 6: Final answer
x = 60,222.88
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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.