Home / 74,125.44-111,168.72-21,520.80

Finding the Fourth Proportional to 74,125.44, 111,168.72 and 21,520.80

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Solution

The fourth proportional to 74,125.44, 111,168.72 and 21,520.80 is: 32,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,125.44 : 111,168.72 = 21,520.80 : x
  2. Step 2: Convert to fraction form
    74,125.44/111,168.72 = 21,520.80/x
  3. Step 3: Cross multiply
    74,125.44x = 111,168.72 × 21,520.80
  4. Step 4: Simplify right side
    74,125.44x = 2,392,439,789.38
  5. Step 5: Solve for x
    x = 2,392,439,789.38/74,125.44
  6. Step 6: Final answer
    x = 32,275.56

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1.5x scale

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.