Home / 82,546.80-123,820.20-23,381.70

Finding the Fourth Proportional to 82,546.80, 123,820.20 and 23,381.70

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Solution

The fourth proportional to 82,546.80, 123,820.20 and 23,381.70 is: 35,072.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,546.80 : 123,820.20 = 23,381.70 : x
  2. Step 2: Convert to fraction form
    82,546.80/123,820.20 = 23,381.70/x
  3. Step 3: Cross multiply
    82,546.80x = 123,820.20 × 23,381.70
  4. Step 4: Simplify right side
    82,546.80x = 2,895,126,770.34
  5. Step 5: Solve for x
    x = 2,895,126,770.34/82,546.80
  6. Step 6: Final answer
    x = 35,072.55

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1.5x scale

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.