Finding the Fourth Proportional to 86,785.73, 119,758.67 and 48,538.66
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Solution
The fourth proportional to 86,785.73, 119,758.67 and 48,538.66 is: 66,980.19
Step by Step Solution
- Step 1: Write the proportion equation
86,785.73 : 119,758.67 = 48,538.66 : x - Step 2: Convert to fraction form
86,785.73/119,758.67 = 48,538.66/x - Step 3: Cross multiply
86,785.73x = 119,758.67 × 48,538.66 - Step 4: Simplify right side
86,785.73x = 5,812,925,187.13 - Step 5: Solve for x
x = 5,812,925,187.13/86,785.73 - Step 6: Final answer
x = 66,980.19
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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.