Home / 90,307.12-135,470.28-27,982.48

Finding the Fourth Proportional to 90,307.12, 135,470.28 and 27,982.48

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Solution

The fourth proportional to 90,307.12, 135,470.28 and 27,982.48 is: 41,976.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,307.12 : 135,470.28 = 27,982.48 : x
  2. Step 2: Convert to fraction form
    90,307.12/135,470.28 = 27,982.48/x
  3. Step 3: Cross multiply
    90,307.12x = 135,470.28 × 27,982.48
  4. Step 4: Simplify right side
    90,307.12x = 3,790,794,400.69
  5. Step 5: Solve for x
    x = 3,790,794,400.69/90,307.12
  6. Step 6: Final answer
    x = 41,976.69

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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.