Home / 90,308.43-135,462.97-30,335.20

Finding the Fourth Proportional to 90,308.43, 135,462.97 and 30,335.20

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Solution

The fourth proportional to 90,308.43, 135,462.97 and 30,335.20 is: 45,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,308.43 : 135,462.97 = 30,335.20 : x
  2. Step 2: Convert to fraction form
    90,308.43/135,462.97 = 30,335.20/x
  3. Step 3: Cross multiply
    90,308.43x = 135,462.97 × 30,335.20
  4. Step 4: Simplify right side
    90,308.43x = 4,109,295,753.65
  5. Step 5: Solve for x
    x = 4,109,295,753.65/90,308.43
  6. Step 6: Final answer
    x = 45,502.90

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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.