Home / 55,778.36-76,974.11-30,627.86

Finding the Fourth Proportional to 55,778.36, 76,974.11 and 30,627.86

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Solution

The fourth proportional to 55,778.36, 76,974.11 and 30,627.86 is: 42,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778.36 : 76,974.11 = 30,627.86 : x
  2. Step 2: Convert to fraction form
    55,778.36/76,974.11 = 30,627.86/x
  3. Step 3: Cross multiply
    55,778.36x = 76,974.11 × 30,627.86
  4. Step 4: Simplify right side
    55,778.36x = 2,357,551,726.69
  5. Step 5: Solve for x
    x = 2,357,551,726.69/55,778.36
  6. Step 6: Final answer
    x = 42,266.43

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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.