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Finding the Fourth Proportional to 51,101.52, 70,520.08 and 28,745.52

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Solution

The fourth proportional to 51,101.52, 70,520.08 and 28,745.52 is: 39,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,101.52 : 70,520.08 = 28,745.52 : x
  2. Step 2: Convert to fraction form
    51,101.52/70,520.08 = 28,745.52/x
  3. Step 3: Cross multiply
    51,101.52x = 70,520.08 × 28,745.52
  4. Step 4: Simplify right side
    51,101.52x = 2,027,136,370.04
  5. Step 5: Solve for x
    x = 2,027,136,370.04/51,101.52
  6. Step 6: Final answer
    x = 39,668.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.