Home / 90,604.20-135,906.30-53,182.20

Finding the Fourth Proportional to 90,604.20, 135,906.30 and 53,182.20

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Solution

The fourth proportional to 90,604.20, 135,906.30 and 53,182.20 is: 79,773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,604.20 : 135,906.30 = 53,182.20 : x
  2. Step 2: Convert to fraction form
    90,604.20/135,906.30 = 53,182.20/x
  3. Step 3: Cross multiply
    90,604.20x = 135,906.30 × 53,182.20
  4. Step 4: Simplify right side
    90,604.20x = 7,227,796,027.86
  5. Step 5: Solve for x
    x = 7,227,796,027.86/90,604.20
  6. Step 6: Final answer
    x = 79,773.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.