Finding the Fourth Proportional to 71,024.60, 106,536.90 and 39,855.80
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Solution
The fourth proportional to 71,024.60, 106,536.90 and 39,855.80 is: 59,783.70
Step by Step Solution
- Step 1: Write the proportion equation
71,024.60 : 106,536.90 = 39,855.80 : x - Step 2: Convert to fraction form
71,024.60/106,536.90 = 39,855.80/x - Step 3: Cross multiply
71,024.60x = 106,536.90 × 39,855.80 - Step 4: Simplify right side
71,024.60x = 4,246,113,379.02 - Step 5: Solve for x
x = 4,246,113,379.02/71,024.60 - Step 6: Final answer
x = 59,783.70
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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.