Home / 74,178.56-111,272.97-29,805.28

Finding the Fourth Proportional to 74,178.56, 111,272.97 and 29,805.28

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Solution

The fourth proportional to 74,178.56, 111,272.97 and 29,805.28 is: 44,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,178.56 : 111,272.97 = 29,805.28 : x
  2. Step 2: Convert to fraction form
    74,178.56/111,272.97 = 29,805.28/x
  3. Step 3: Cross multiply
    74,178.56x = 111,272.97 × 29,805.28
  4. Step 4: Simplify right side
    74,178.56x = 3,316,521,860.87
  5. Step 5: Solve for x
    x = 3,316,521,860.87/74,178.56
  6. Step 6: Final answer
    x = 44,709.98

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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.