Home / 57,474.63-79,351.42-39,355.67

Finding the Fourth Proportional to 57,474.63, 79,351.42 and 39,355.67

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Solution

The fourth proportional to 57,474.63, 79,351.42 and 39,355.67 is: 54,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,474.63 : 79,351.42 = 39,355.67 : x
  2. Step 2: Convert to fraction form
    57,474.63/79,351.42 = 39,355.67/x
  3. Step 3: Cross multiply
    57,474.63x = 79,351.42 × 39,355.67
  4. Step 4: Simplify right side
    57,474.63x = 3,122,928,299.55
  5. Step 5: Solve for x
    x = 3,122,928,299.55/57,474.63
  6. Step 6: Final answer
    x = 54,335.77

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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.