Home / 74,295.28-111,462.36-21,709.36

Finding the Fourth Proportional to 74,295.28, 111,462.36 and 21,709.36

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Solution

The fourth proportional to 74,295.28, 111,462.36 and 21,709.36 is: 32,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,295.28 : 111,462.36 = 21,709.36 : x
  2. Step 2: Convert to fraction form
    74,295.28/111,462.36 = 21,709.36/x
  3. Step 3: Cross multiply
    74,295.28x = 111,462.36 × 21,709.36
  4. Step 4: Simplify right side
    74,295.28x = 2,419,776,499.69
  5. Step 5: Solve for x
    x = 2,419,776,499.69/74,295.28
  6. Step 6: Final answer
    x = 32,569.72

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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.