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Finding the Fourth Proportional to 84,203.95, 126,291.57 and 28,037.69

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Solution

The fourth proportional to 84,203.95, 126,291.57 and 28,037.69 is: 42,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,203.95 : 126,291.57 = 28,037.69 : x
  2. Step 2: Convert to fraction form
    84,203.95/126,291.57 = 28,037.69/x
  3. Step 3: Cross multiply
    84,203.95x = 126,291.57 × 28,037.69
  4. Step 4: Simplify right side
    84,203.95x = 3,540,923,626.27
  5. Step 5: Solve for x
    x = 3,540,923,626.27/84,203.95
  6. Step 6: Final answer
    x = 42,051.75

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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.