Home / 84,128.65-126,217.40-27,201.33

Finding the Fourth Proportional to 84,128.65, 126,217.40 and 27,201.33

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Solution

The fourth proportional to 84,128.65, 126,217.40 and 27,201.33 is: 40,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,128.65 : 126,217.40 = 27,201.33 : x
  2. Step 2: Convert to fraction form
    84,128.65/126,217.40 = 27,201.33/x
  3. Step 3: Cross multiply
    84,128.65x = 126,217.40 × 27,201.33
  4. Step 4: Simplify right side
    84,128.65x = 3,433,281,149.14
  5. Step 5: Solve for x
    x = 3,433,281,149.14/84,128.65
  6. Step 6: Final answer
    x = 40,809.89

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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.