Home / 90,217.64-135,325.24-53,013.73

Finding the Fourth Proportional to 90,217.64, 135,325.24 and 53,013.73

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Solution

The fourth proportional to 90,217.64, 135,325.24 and 53,013.73 is: 79,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217.64 : 135,325.24 = 53,013.73 : x
  2. Step 2: Convert to fraction form
    90,217.64/135,325.24 = 53,013.73/x
  3. Step 3: Cross multiply
    90,217.64x = 135,325.24 × 53,013.73
  4. Step 4: Simplify right side
    90,217.64x = 7,174,095,735.55
  5. Step 5: Solve for x
    x = 7,174,095,735.55/90,217.64
  6. Step 6: Final answer
    x = 79,519.88

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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.