Finding the Fourth Proportional to 76,828.12, 115,245.84 and 37,338.19
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Solution
The fourth proportional to 76,828.12, 115,245.84 and 37,338.19 is: 56,009.06
Step by Step Solution
- Step 1: Write the proportion equation
76,828.12 : 115,245.84 = 37,338.19 : x - Step 2: Convert to fraction form
76,828.12/115,245.84 = 37,338.19/x - Step 3: Cross multiply
76,828.12x = 115,245.84 × 37,338.19 - Step 4: Simplify right side
76,828.12x = 4,303,071,070.63 - Step 5: Solve for x
x = 4,303,071,070.63/76,828.12 - Step 6: Final answer
x = 56,009.06
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1.5x scale
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.