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Finding the Fourth Proportional to 50,309.76, 75,462.06 and 18,719.76

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Solution

The fourth proportional to 50,309.76, 75,462.06 and 18,719.76 is: 28,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,309.76 : 75,462.06 = 18,719.76 : x
  2. Step 2: Convert to fraction form
    50,309.76/75,462.06 = 18,719.76/x
  3. Step 3: Cross multiply
    50,309.76x = 75,462.06 × 18,719.76
  4. Step 4: Simplify right side
    50,309.76x = 1,412,631,652.31
  5. Step 5: Solve for x
    x = 1,412,631,652.31/50,309.76
  6. Step 6: Final answer
    x = 28,078.68

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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.