Home / 52,199.28-78,289.92-17,139.60

Finding the Fourth Proportional to 52,199.28, 78,289.92 and 17,139.60

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Solution

The fourth proportional to 52,199.28, 78,289.92 and 17,139.60 is: 25,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,199.28 : 78,289.92 = 17,139.60 : x
  2. Step 2: Convert to fraction form
    52,199.28/78,289.92 = 17,139.60/x
  3. Step 3: Cross multiply
    52,199.28x = 78,289.92 × 17,139.60
  4. Step 4: Simplify right side
    52,199.28x = 1,341,857,912.83
  5. Step 5: Solve for x
    x = 1,341,857,912.83/52,199.28
  6. Step 6: Final answer
    x = 25,706.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.