Home / 90,231.28-135,351.36-23,671.56

Finding the Fourth Proportional to 90,231.28, 135,351.36 and 23,671.56

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Solution

The fourth proportional to 90,231.28, 135,351.36 and 23,671.56 is: 35,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,231.28 : 135,351.36 = 23,671.56 : x
  2. Step 2: Convert to fraction form
    90,231.28/135,351.36 = 23,671.56/x
  3. Step 3: Cross multiply
    90,231.28x = 135,351.36 × 23,671.56
  4. Step 4: Simplify right side
    90,231.28x = 3,203,977,839.32
  5. Step 5: Solve for x
    x = 3,203,977,839.32/90,231.28
  6. Step 6: Final answer
    x = 35,508.50

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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.