Finding the Fourth Proportional to 86,785.38, 130,195.49 and 36,865.08
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Solution
The fourth proportional to 86,785.38, 130,195.49 and 36,865.08 is: 55,305.02
Step by Step Solution
- Step 1: Write the proportion equation
86,785.38 : 130,195.49 = 36,865.08 : x - Step 2: Convert to fraction form
86,785.38/130,195.49 = 36,865.08/x - Step 3: Cross multiply
86,785.38x = 130,195.49 × 36,865.08 - Step 4: Simplify right side
86,785.38x = 4,799,666,970.16 - Step 5: Solve for x
x = 4,799,666,970.16/86,785.38 - Step 6: Final answer
x = 55,305.02
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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.