Home / 51,520.20-71,099.01-28,860.86

Finding the Fourth Proportional to 51,520.20, 71,099.01 and 28,860.86

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Solution

The fourth proportional to 51,520.20, 71,099.01 and 28,860.86 is: 39,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,520.20 : 71,099.01 = 28,860.86 : x
  2. Step 2: Convert to fraction form
    51,520.20/71,099.01 = 28,860.86/x
  3. Step 3: Cross multiply
    51,520.20x = 71,099.01 × 28,860.86
  4. Step 4: Simplify right side
    51,520.20x = 2,051,978,218.25
  5. Step 5: Solve for x
    x = 2,051,978,218.25/51,520.20
  6. Step 6: Final answer
    x = 39,828.62

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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.