Home / 57,757.41-86,639.27-18,311.67

Finding the Fourth Proportional to 57,757.41, 86,639.27 and 18,311.67

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Solution

The fourth proportional to 57,757.41, 86,639.27 and 18,311.67 is: 27,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,757.41 : 86,639.27 = 18,311.67 : x
  2. Step 2: Convert to fraction form
    57,757.41/86,639.27 = 18,311.67/x
  3. Step 3: Cross multiply
    57,757.41x = 86,639.27 × 18,311.67
  4. Step 4: Simplify right side
    57,757.41x = 1,586,509,721.28
  5. Step 5: Solve for x
    x = 1,586,509,721.28/57,757.41
  6. Step 6: Final answer
    x = 27,468.51

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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.