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Finding the Fourth Proportional to 71,212.66, 106,725.52 and 52,404.64

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Solution

The fourth proportional to 71,212.66, 106,725.52 and 52,404.64 is: 78,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,212.66 : 106,725.52 = 52,404.64 : x
  2. Step 2: Convert to fraction form
    71,212.66/106,725.52 = 52,404.64/x
  3. Step 3: Cross multiply
    71,212.66x = 106,725.52 × 52,404.64
  4. Step 4: Simplify right side
    71,212.66x = 5,592,912,454.41
  5. Step 5: Solve for x
    x = 5,592,912,454.41/71,212.66
  6. Step 6: Final answer
    x = 78,538.18

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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.