Home / 90,676.96-125,134.34-50,389.69

Finding the Fourth Proportional to 90,676.96, 125,134.34 and 50,389.69

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Solution

The fourth proportional to 90,676.96, 125,134.34 and 50,389.69 is: 69,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,676.96 : 125,134.34 = 50,389.69 : x
  2. Step 2: Convert to fraction form
    90,676.96/125,134.34 = 50,389.69/x
  3. Step 3: Cross multiply
    90,676.96x = 125,134.34 × 50,389.69
  4. Step 4: Simplify right side
    90,676.96x = 6,305,480,414.09
  5. Step 5: Solve for x
    x = 6,305,480,414.09/90,676.96
  6. Step 6: Final answer
    x = 69,537.85

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1.5x scale

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.