Home / 74,406.28-111,607.92-21,814.60

Finding the Fourth Proportional to 74,406.28, 111,607.92 and 21,814.60

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Solution

The fourth proportional to 74,406.28, 111,607.92 and 21,814.60 is: 32,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,406.28 : 111,607.92 = 21,814.60 : x
  2. Step 2: Convert to fraction form
    74,406.28/111,607.92 = 21,814.60/x
  3. Step 3: Cross multiply
    74,406.28x = 111,607.92 × 21,814.60
  4. Step 4: Simplify right side
    74,406.28x = 2,434,682,131.63
  5. Step 5: Solve for x
    x = 2,434,682,131.63/74,406.28
  6. Step 6: Final answer
    x = 32,721.46

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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.