Home / 90,786.98-125,276.33-50,494.28

Finding the Fourth Proportional to 90,786.98, 125,276.33 and 50,494.28

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Solution

The fourth proportional to 90,786.98, 125,276.33 and 50,494.28 is: 69,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,786.98 : 125,276.33 = 50,494.28 : x
  2. Step 2: Convert to fraction form
    90,786.98/125,276.33 = 50,494.28/x
  3. Step 3: Cross multiply
    90,786.98x = 125,276.33 × 50,494.28
  4. Step 4: Simplify right side
    90,786.98x = 6,325,737,205.54
  5. Step 5: Solve for x
    x = 6,325,737,205.54/90,786.98
  6. Step 6: Final answer
    x = 69,676.70

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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.