Home / 55,778.72-76,975.30-30,285.39

Finding the Fourth Proportional to 55,778.72, 76,975.30 and 30,285.39

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Solution

The fourth proportional to 55,778.72, 76,975.30 and 30,285.39 is: 41,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778.72 : 76,975.30 = 30,285.39 : x
  2. Step 2: Convert to fraction form
    55,778.72/76,975.30 = 30,285.39/x
  3. Step 3: Cross multiply
    55,778.72x = 76,975.30 × 30,285.39
  4. Step 4: Simplify right side
    55,778.72x = 2,331,226,829.44
  5. Step 5: Solve for x
    x = 2,331,226,829.44/55,778.72
  6. Step 6: Final answer
    x = 41,794.20

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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.