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Finding the Fourth Proportional to 84,028.90, 126,062.97 and 27,864.90

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Solution

The fourth proportional to 84,028.90, 126,062.97 and 27,864.90 is: 41,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,028.90 : 126,062.97 = 27,864.90 : x
  2. Step 2: Convert to fraction form
    84,028.90/126,062.97 = 27,864.90/x
  3. Step 3: Cross multiply
    84,028.90x = 126,062.97 × 27,864.90
  4. Step 4: Simplify right side
    84,028.90x = 3,512,732,228.59
  5. Step 5: Solve for x
    x = 3,512,732,228.59/84,028.90
  6. Step 6: Final answer
    x = 41,803.86

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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.