Home / 90,972.82-125,546.36-50,686.56

Finding the Fourth Proportional to 90,972.82, 125,546.36 and 50,686.56

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Solution

The fourth proportional to 90,972.82, 125,546.36 and 50,686.56 is: 69,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,972.82 : 125,546.36 = 50,686.56 : x
  2. Step 2: Convert to fraction form
    90,972.82/125,546.36 = 50,686.56/x
  3. Step 3: Cross multiply
    90,972.82x = 125,546.36 × 50,686.56
  4. Step 4: Simplify right side
    90,972.82x = 6,363,512,855.49
  5. Step 5: Solve for x
    x = 6,363,512,855.49/90,972.82
  6. Step 6: Final answer
    x = 69,949.60

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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.