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Finding the Fourth Proportional to 93,794, 140,691 and 28,130

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Solution

The fourth proportional to 93,794, 140,691 and 28,130 is: 42,195

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,794 : 140,691 = 28,130 : x
  2. Step 2: Convert to fraction form
    93,794/140,691 = 28,130/x
  3. Step 3: Cross multiply
    93,794x = 140,691 × 28,130
  4. Step 4: Simplify right side
    93,794x = 3,957,637,830
  5. Step 5: Solve for x
    x = 3,957,637,830/93,794
  6. Step 6: Final answer
    x = 42,195

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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.