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Finding the Fourth Proportional to 50,455.60, 75,687.54 and 20,867.92

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Solution

The fourth proportional to 50,455.60, 75,687.54 and 20,867.92 is: 31,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,455.60 : 75,687.54 = 20,867.92 : x
  2. Step 2: Convert to fraction form
    50,455.60/75,687.54 = 20,867.92/x
  3. Step 3: Cross multiply
    50,455.60x = 75,687.54 × 20,867.92
  4. Step 4: Simplify right side
    50,455.60x = 1,579,441,529.72
  5. Step 5: Solve for x
    x = 1,579,441,529.72/50,455.60
  6. Step 6: Final answer
    x = 31,303.59

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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.