Home / 64,343.58-88,786.71-38,865.30

Finding the Fourth Proportional to 64,343.58, 88,786.71 and 38,865.30

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Solution

The fourth proportional to 64,343.58, 88,786.71 and 38,865.30 is: 53,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,343.58 : 88,786.71 = 38,865.30 : x
  2. Step 2: Convert to fraction form
    64,343.58/88,786.71 = 38,865.30/x
  3. Step 3: Cross multiply
    64,343.58x = 88,786.71 × 38,865.30
  4. Step 4: Simplify right side
    64,343.58x = 3,450,722,120.16
  5. Step 5: Solve for x
    x = 3,450,722,120.16/64,343.58
  6. Step 6: Final answer
    x = 53,629.63

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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.