Home / 63,626.16-87,786.36-39,777.12

Finding the Fourth Proportional to 63,626.16, 87,786.36 and 39,777.12

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Solution

The fourth proportional to 63,626.16, 87,786.36 and 39,777.12 is: 54,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,626.16 : 87,786.36 = 39,777.12 : x
  2. Step 2: Convert to fraction form
    63,626.16/87,786.36 = 39,777.12/x
  3. Step 3: Cross multiply
    63,626.16x = 87,786.36 × 39,777.12
  4. Step 4: Simplify right side
    63,626.16x = 3,491,888,576.08
  5. Step 5: Solve for x
    x = 3,491,888,576.08/63,626.16
  6. Step 6: Final answer
    x = 54,881.33

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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.