Finding the Fourth Proportional to 72,588.73, 109,309.44 and 63,339.09
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Solution
The fourth proportional to 72,588.73, 109,309.44 and 63,339.09 is: 95,380.65
Step by Step Solution
- Step 1: Write the proportion equation
72,588.73 : 109,309.44 = 63,339.09 : x - Step 2: Convert to fraction form
72,588.73/109,309.44 = 63,339.09/x - Step 3: Cross multiply
72,588.73x = 109,309.44 × 63,339.09 - Step 4: Simplify right side
72,588.73x = 6,923,560,285.62 - Step 5: Solve for x
x = 6,923,560,285.62/72,588.73 - Step 6: Final answer
x = 95,380.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.