Finding the Fourth Proportional to 76,705.07, 105,853.79 and 44,867.75
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Solution
The fourth proportional to 76,705.07, 105,853.79 and 44,867.75 is: 61,917.96
Step by Step Solution
- Step 1: Write the proportion equation
76,705.07 : 105,853.79 = 44,867.75 : x - Step 2: Convert to fraction form
76,705.07/105,853.79 = 44,867.75/x - Step 3: Cross multiply
76,705.07x = 105,853.79 × 44,867.75 - Step 4: Simplify right side
76,705.07x = 4,749,421,161.93 - Step 5: Solve for x
x = 4,749,421,161.93/76,705.07 - Step 6: Final answer
x = 61,917.96
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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.