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Finding the Fourth Proportional to 55,602, 76,731 and 30,451.92

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Solution

The fourth proportional to 55,602, 76,731 and 30,451.92 is: 42,023.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,602 : 76,731 = 30,451.92 : x
  2. Step 2: Convert to fraction form
    55,602/76,731 = 30,451.92/x
  3. Step 3: Cross multiply
    55,602x = 76,731 × 30,451.92
  4. Step 4: Simplify right side
    55,602x = 2,336,606,273.52
  5. Step 5: Solve for x
    x = 2,336,606,273.52/55,602
  6. Step 6: Final answer
    x = 42,023.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.