Home / 90,101.20-135,219.12-33,996.64

Finding the Fourth Proportional to 90,101.20, 135,219.12 and 33,996.64

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Solution

The fourth proportional to 90,101.20, 135,219.12 and 33,996.64 is: 51,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,101.20 : 135,219.12 = 33,996.64 : x
  2. Step 2: Convert to fraction form
    90,101.20/135,219.12 = 33,996.64/x
  3. Step 3: Cross multiply
    90,101.20x = 135,219.12 × 33,996.64
  4. Step 4: Simplify right side
    90,101.20x = 4,596,995,743.76
  5. Step 5: Solve for x
    x = 4,596,995,743.76/90,101.20
  6. Step 6: Final answer
    x = 51,020.36

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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.