Finding the Fourth Proportional to 86,776.13, 119,715.73 and 56,550.44
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Solution
The fourth proportional to 86,776.13, 119,715.73 and 56,550.44 is: 78,016.59
Step by Step Solution
- Step 1: Write the proportion equation
86,776.13 : 119,715.73 = 56,550.44 : x - Step 2: Convert to fraction form
86,776.13/119,715.73 = 56,550.44/x - Step 3: Cross multiply
86,776.13x = 119,715.73 × 56,550.44 - Step 4: Simplify right side
86,776.13x = 6,769,977,647.09 - Step 5: Solve for x
x = 6,769,977,647.09/86,776.13 - Step 6: Final answer
x = 78,016.59
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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.