Home / 63,610.56-87,838.20-39,777.84

Finding the Fourth Proportional to 63,610.56, 87,838.20 and 39,777.84

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Solution

The fourth proportional to 63,610.56, 87,838.20 and 39,777.84 is: 54,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,610.56 : 87,838.20 = 39,777.84 : x
  2. Step 2: Convert to fraction form
    63,610.56/87,838.20 = 39,777.84/x
  3. Step 3: Cross multiply
    63,610.56x = 87,838.20 × 39,777.84
  4. Step 4: Simplify right side
    63,610.56x = 3,494,013,865.49
  5. Step 5: Solve for x
    x = 3,494,013,865.49/63,610.56
  6. Step 6: Final answer
    x = 54,928.20

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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.