Home / 57,964.57-86,954.15-20,515.84

Finding the Fourth Proportional to 57,964.57, 86,954.15 and 20,515.84

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Solution

The fourth proportional to 57,964.57, 86,954.15 and 20,515.84 is: 30,776.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,964.57 : 86,954.15 = 20,515.84 : x
  2. Step 2: Convert to fraction form
    57,964.57/86,954.15 = 20,515.84/x
  3. Step 3: Cross multiply
    57,964.57x = 86,954.15 × 20,515.84
  4. Step 4: Simplify right side
    57,964.57x = 1,783,937,262.64
  5. Step 5: Solve for x
    x = 1,783,937,262.64/57,964.57
  6. Step 6: Final answer
    x = 30,776.34

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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.