Finding the Fourth Proportional to 79,931.65, 110,305.70 and 44,121.68
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Solution
The fourth proportional to 79,931.65, 110,305.70 and 44,121.68 is: 60,887.93
Step by Step Solution
- Step 1: Write the proportion equation
79,931.65 : 110,305.70 = 44,121.68 : x - Step 2: Convert to fraction form
79,931.65/110,305.70 = 44,121.68/x - Step 3: Cross multiply
79,931.65x = 110,305.70 × 44,121.68 - Step 4: Simplify right side
79,931.65x = 4,866,872,576.97 - Step 5: Solve for x
x = 4,866,872,576.97/79,931.65 - Step 6: Final answer
x = 60,887.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.