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Finding the Fourth Proportional to 47.08, 70.25 and 46.60

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Solution

The fourth proportional to 47.08, 70.25 and 46.60 is: 69.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.08 : 70.25 = 46.60 : x
  2. Step 2: Convert to fraction form
    47.08/70.25 = 46.60/x
  3. Step 3: Cross multiply
    47.08x = 70.25 × 46.60
  4. Step 4: Simplify right side
    47.08x = 3,273.65
  5. Step 5: Solve for x
    x = 3,273.65/47.08
  6. Step 6: Final answer
    x = 69.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.