Home / 90,628.25-135,971.27-38,023.61

Finding the Fourth Proportional to 90,628.25, 135,971.27 and 38,023.61

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Solution

The fourth proportional to 90,628.25, 135,971.27 and 38,023.61 is: 57,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,628.25 : 135,971.27 = 38,023.61 : x
  2. Step 2: Convert to fraction form
    90,628.25/135,971.27 = 38,023.61/x
  3. Step 3: Cross multiply
    90,628.25x = 135,971.27 × 38,023.61
  4. Step 4: Simplify right side
    90,628.25x = 5,170,118,351.57
  5. Step 5: Solve for x
    x = 5,170,118,351.57/90,628.25
  6. Step 6: Final answer
    x = 57,047.54

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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.