Home / 74,610.76-111,965.34-35,171.86

Finding the Fourth Proportional to 74,610.76, 111,965.34 and 35,171.86

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Solution

The fourth proportional to 74,610.76, 111,965.34 and 35,171.86 is: 52,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,610.76 : 111,965.34 = 35,171.86 : x
  2. Step 2: Convert to fraction form
    74,610.76/111,965.34 = 35,171.86/x
  3. Step 3: Cross multiply
    74,610.76x = 111,965.34 × 35,171.86
  4. Step 4: Simplify right side
    74,610.76x = 3,938,028,703.51
  5. Step 5: Solve for x
    x = 3,938,028,703.51/74,610.76
  6. Step 6: Final answer
    x = 52,780.98

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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.