Home / 90,676.37-125,130.89-50,389.09

Finding the Fourth Proportional to 90,676.37, 125,130.89 and 50,389.09

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Solution

The fourth proportional to 90,676.37, 125,130.89 and 50,389.09 is: 69,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,676.37 : 125,130.89 = 50,389.09 : x
  2. Step 2: Convert to fraction form
    90,676.37/125,130.89 = 50,389.09/x
  3. Step 3: Cross multiply
    90,676.37x = 125,130.89 × 50,389.09
  4. Step 4: Simplify right side
    90,676.37x = 6,305,231,677.99
  5. Step 5: Solve for x
    x = 6,305,231,677.99/90,676.37
  6. Step 6: Final answer
    x = 69,535.55

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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.