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Finding the Fourth Proportional to 62.37, 93.45 and 47.09

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Solution

The fourth proportional to 62.37, 93.45 and 47.09 is: 70.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.37 : 93.45 = 47.09 : x
  2. Step 2: Convert to fraction form
    62.37/93.45 = 47.09/x
  3. Step 3: Cross multiply
    62.37x = 93.45 × 47.09
  4. Step 4: Simplify right side
    62.37x = 4,400.56
  5. Step 5: Solve for x
    x = 4,400.56/62.37
  6. Step 6: Final answer
    x = 70.56

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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.