Home / 90,936.92-125,490.30-50,650.72

Finding the Fourth Proportional to 90,936.92, 125,490.30 and 50,650.72

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Solution

The fourth proportional to 90,936.92, 125,490.30 and 50,650.72 is: 69,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,936.92 : 125,490.30 = 50,650.72 : x
  2. Step 2: Convert to fraction form
    90,936.92/125,490.30 = 50,650.72/x
  3. Step 3: Cross multiply
    90,936.92x = 125,490.30 × 50,650.72
  4. Step 4: Simplify right side
    90,936.92x = 6,356,174,048.02
  5. Step 5: Solve for x
    x = 6,356,174,048.02/90,936.92
  6. Step 6: Final answer
    x = 69,896.52

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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.