Finding the Fourth Proportional to 70,877.97, 106,318.35 and 20,958.03
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Solution
The fourth proportional to 70,877.97, 106,318.35 and 20,958.03 is: 31,437.46
Step by Step Solution
- Step 1: Write the proportion equation
70,877.97 : 106,318.35 = 20,958.03 : x - Step 2: Convert to fraction form
70,877.97/106,318.35 = 20,958.03/x - Step 3: Cross multiply
70,877.97x = 106,318.35 × 20,958.03 - Step 4: Simplify right side
70,877.97x = 2,228,223,168.85 - Step 5: Solve for x
x = 2,228,223,168.85/70,877.97 - Step 6: Final answer
x = 31,437.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.