Home / 90,336.39-135,517.03-30,369.52

Finding the Fourth Proportional to 90,336.39, 135,517.03 and 30,369.52

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Solution

The fourth proportional to 90,336.39, 135,517.03 and 30,369.52 is: 45,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,336.39 : 135,517.03 = 30,369.52 : x
  2. Step 2: Convert to fraction form
    90,336.39/135,517.03 = 30,369.52/x
  3. Step 3: Cross multiply
    90,336.39x = 135,517.03 × 30,369.52
  4. Step 4: Simplify right side
    90,336.39x = 4,115,587,001.08
  5. Step 5: Solve for x
    x = 4,115,587,001.08/90,336.39
  6. Step 6: Final answer
    x = 45,558.46

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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.