Home / 57,949.14-86,930.98-20,500.40

Finding the Fourth Proportional to 57,949.14, 86,930.98 and 20,500.40

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Solution

The fourth proportional to 57,949.14, 86,930.98 and 20,500.40 is: 30,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,949.14 : 86,930.98 = 20,500.40 : x
  2. Step 2: Convert to fraction form
    57,949.14/86,930.98 = 20,500.40/x
  3. Step 3: Cross multiply
    57,949.14x = 86,930.98 × 20,500.40
  4. Step 4: Simplify right side
    57,949.14x = 1,782,119,862.39
  5. Step 5: Solve for x
    x = 1,782,119,862.39/57,949.14
  6. Step 6: Final answer
    x = 30,753.17

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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.