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Finding the Fourth Proportional to 57,399.57, 79,209.81 and 31,905.27

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Solution

The fourth proportional to 57,399.57, 79,209.81 and 31,905.27 is: 44,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,399.57 : 79,209.81 = 31,905.27 : x
  2. Step 2: Convert to fraction form
    57,399.57/79,209.81 = 31,905.27/x
  3. Step 3: Cross multiply
    57,399.57x = 79,209.81 × 31,905.27
  4. Step 4: Simplify right side
    57,399.57x = 2,527,210,374.70
  5. Step 5: Solve for x
    x = 2,527,210,374.70/57,399.57
  6. Step 6: Final answer
    x = 44,028.39

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1.5x scale

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.