Home / 83,922.12-115,786.44-47,617.56

Finding the Fourth Proportional to 83,922.12, 115,786.44 and 47,617.56

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Solution

The fourth proportional to 83,922.12, 115,786.44 and 47,617.56 is: 65,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,922.12 : 115,786.44 = 47,617.56 : x
  2. Step 2: Convert to fraction form
    83,922.12/115,786.44 = 47,617.56/x
  3. Step 3: Cross multiply
    83,922.12x = 115,786.44 × 47,617.56
  4. Step 4: Simplify right side
    83,922.12x = 5,513,467,753.89
  5. Step 5: Solve for x
    x = 5,513,467,753.89/83,922.12
  6. Step 6: Final answer
    x = 65,697.43

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1.5x scale

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.