Finding the Fourth Proportional to 70,606.35, 105,734.57 and 39,375.99
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Solution
The fourth proportional to 70,606.35, 105,734.57 and 39,375.99 is: 58,966.41
Step by Step Solution
- Step 1: Write the proportion equation
70,606.35 : 105,734.57 = 39,375.99 : x - Step 2: Convert to fraction form
70,606.35/105,734.57 = 39,375.99/x - Step 3: Cross multiply
70,606.35x = 105,734.57 × 39,375.99 - Step 4: Simplify right side
70,606.35x = 4,163,403,174.09 - Step 5: Solve for x
x = 4,163,403,174.09/70,606.35 - Step 6: Final answer
x = 58,966.41
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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.