Home / 47,756.70-65,876.78-29,820.56

Finding the Fourth Proportional to 47,756.70, 65,876.78 and 29,820.56

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Solution

The fourth proportional to 47,756.70, 65,876.78 and 29,820.56 is: 41,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,756.70 : 65,876.78 = 29,820.56 : x
  2. Step 2: Convert to fraction form
    47,756.70/65,876.78 = 29,820.56/x
  3. Step 3: Cross multiply
    47,756.70x = 65,876.78 × 29,820.56
  4. Step 4: Simplify right side
    47,756.70x = 1,964,482,470.60
  5. Step 5: Solve for x
    x = 1,964,482,470.60/47,756.70
  6. Step 6: Final answer
    x = 41,135.22

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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.