Home / 74,029.52-111,043.56-21,438.56

Finding the Fourth Proportional to 74,029.52, 111,043.56 and 21,438.56

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Solution

The fourth proportional to 74,029.52, 111,043.56 and 21,438.56 is: 32,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,029.52 : 111,043.56 = 21,438.56 : x
  2. Step 2: Convert to fraction form
    74,029.52/111,043.56 = 21,438.56/x
  3. Step 3: Cross multiply
    74,029.52x = 111,043.56 × 21,438.56
  4. Step 4: Simplify right side
    74,029.52x = 2,380,614,023.67
  5. Step 5: Solve for x
    x = 2,380,614,023.67/74,029.52
  6. Step 6: Final answer
    x = 32,157.63

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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.