Finding the Fourth Proportional to 72,671.97, 100,224.87 and 47,153.19
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Solution
The fourth proportional to 72,671.97, 100,224.87 and 47,153.19 is: 65,030.88
Step by Step Solution
- Step 1: Write the proportion equation
72,671.97 : 100,224.87 = 47,153.19 : x - Step 2: Convert to fraction form
72,671.97/100,224.87 = 47,153.19/x - Step 3: Cross multiply
72,671.97x = 100,224.87 × 47,153.19 - Step 4: Simplify right side
72,671.97x = 4,725,922,337.84 - Step 5: Solve for x
x = 4,725,922,337.84/72,671.97 - Step 6: Final answer
x = 65,030.88
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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.