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Finding the Fourth Proportional to 51,103.52, 70,522.84 and 28,747.52

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Solution

The fourth proportional to 51,103.52, 70,522.84 and 28,747.52 is: 39,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,103.52 : 70,522.84 = 28,747.52 : x
  2. Step 2: Convert to fraction form
    51,103.52/70,522.84 = 28,747.52/x
  3. Step 3: Cross multiply
    51,103.52x = 70,522.84 × 28,747.52
  4. Step 4: Simplify right side
    51,103.52x = 2,027,356,753.36
  5. Step 5: Solve for x
    x = 2,027,356,753.36/51,103.52
  6. Step 6: Final answer
    x = 39,671.57

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1.5x scale

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.