Home / 53,890.20-80,872.20-18,829.86

Finding the Fourth Proportional to 53,890.20, 80,872.20 and 18,829.86

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Solution

The fourth proportional to 53,890.20, 80,872.20 and 18,829.86 is: 28,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,890.20 : 80,872.20 = 18,829.86 : x
  2. Step 2: Convert to fraction form
    53,890.20/80,872.20 = 18,829.86/x
  3. Step 3: Cross multiply
    53,890.20x = 80,872.20 × 18,829.86
  4. Step 4: Simplify right side
    53,890.20x = 1,522,812,203.89
  5. Step 5: Solve for x
    x = 1,522,812,203.89/53,890.20
  6. Step 6: Final answer
    x = 28,257.68

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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.