Finding the Fourth Proportional to 76,914.74, 115,423.60 and 26,995.08
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Solution
The fourth proportional to 76,914.74, 115,423.60 and 26,995.08 is: 40,510.69
Step by Step Solution
- Step 1: Write the proportion equation
76,914.74 : 115,423.60 = 26,995.08 : x - Step 2: Convert to fraction form
76,914.74/115,423.60 = 26,995.08/x - Step 3: Cross multiply
76,914.74x = 115,423.60 × 26,995.08 - Step 4: Simplify right side
76,914.74x = 3,115,869,315.89 - Step 5: Solve for x
x = 3,115,869,315.89/76,914.74 - Step 6: Final answer
x = 40,510.69
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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.