Home / 90,334.59-135,500.66-28,005.09

Finding the Fourth Proportional to 90,334.59, 135,500.66 and 28,005.09

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Solution

The fourth proportional to 90,334.59, 135,500.66 and 28,005.09 is: 42,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,334.59 : 135,500.66 = 28,005.09 : x
  2. Step 2: Convert to fraction form
    90,334.59/135,500.66 = 28,005.09/x
  3. Step 3: Cross multiply
    90,334.59x = 135,500.66 × 28,005.09
  4. Step 4: Simplify right side
    90,334.59x = 3,794,708,038.33
  5. Step 5: Solve for x
    x = 3,794,708,038.33/90,334.59
  6. Step 6: Final answer
    x = 42,007.25

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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.