Finding the Fourth Proportional to 84,027.03, 115,879.41 and 61,330.08
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Solution
The fourth proportional to 84,027.03, 115,879.41 and 61,330.08 is: 84,578.66
Step by Step Solution
- Step 1: Write the proportion equation
84,027.03 : 115,879.41 = 61,330.08 : x - Step 2: Convert to fraction form
84,027.03/115,879.41 = 61,330.08/x - Step 3: Cross multiply
84,027.03x = 115,879.41 × 61,330.08 - Step 4: Simplify right side
84,027.03x = 7,106,893,485.65 - Step 5: Solve for x
x = 7,106,893,485.65/84,027.03 - Step 6: Final answer
x = 84,578.66
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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.