Home / 56,650.32-84,956.85-19,200.78

Finding the Fourth Proportional to 56,650.32, 84,956.85 and 19,200.78

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Solution

The fourth proportional to 56,650.32, 84,956.85 and 19,200.78 is: 28,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,650.32 : 84,956.85 = 19,200.78 : x
  2. Step 2: Convert to fraction form
    56,650.32/84,956.85 = 19,200.78/x
  3. Step 3: Cross multiply
    56,650.32x = 84,956.85 × 19,200.78
  4. Step 4: Simplify right side
    56,650.32x = 1,631,237,786.34
  5. Step 5: Solve for x
    x = 1,631,237,786.34/56,650.32
  6. Step 6: Final answer
    x = 28,794.86

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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.