Home / 57,976.08-86,815.28-40,181.36

Finding the Fourth Proportional to 57,976.08, 86,815.28 and 40,181.36

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Solution

The fourth proportional to 57,976.08, 86,815.28 and 40,181.36 is: 60,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,976.08 : 86,815.28 = 40,181.36 : x
  2. Step 2: Convert to fraction form
    57,976.08/86,815.28 = 40,181.36/x
  3. Step 3: Cross multiply
    57,976.08x = 86,815.28 × 40,181.36
  4. Step 4: Simplify right side
    57,976.08x = 3,488,356,019.18
  5. Step 5: Solve for x
    x = 3,488,356,019.18/57,976.08
  6. Step 6: Final answer
    x = 60,168.88

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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.