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Finding the Fourth Proportional to 93,080.72, 139,647 and 51,556.88

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Solution

The fourth proportional to 93,080.72, 139,647 and 51,556.88 is: 77,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,080.72 : 139,647 = 51,556.88 : x
  2. Step 2: Convert to fraction form
    93,080.72/139,647 = 51,556.88/x
  3. Step 3: Cross multiply
    93,080.72x = 139,647 × 51,556.88
  4. Step 4: Simplify right side
    93,080.72x = 7,199,763,621.36
  5. Step 5: Solve for x
    x = 7,199,763,621.36/93,080.72
  6. Step 6: Final answer
    x = 77,349.68

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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.