Home / 57,036.74-78,709.33-33,171.71

Finding the Fourth Proportional to 57,036.74, 78,709.33 and 33,171.71

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Solution

The fourth proportional to 57,036.74, 78,709.33 and 33,171.71 is: 45,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.74 : 78,709.33 = 33,171.71 : x
  2. Step 2: Convert to fraction form
    57,036.74/78,709.33 = 33,171.71/x
  3. Step 3: Cross multiply
    57,036.74x = 78,709.33 × 33,171.71
  4. Step 4: Simplify right side
    57,036.74x = 2,610,923,069.05
  5. Step 5: Solve for x
    x = 2,610,923,069.05/57,036.74
  6. Step 6: Final answer
    x = 45,776.16

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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.