Home / 47,420.10-71,134.24-12,359.75

Finding the Fourth Proportional to 47,420.10, 71,134.24 and 12,359.75

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Solution

The fourth proportional to 47,420.10, 71,134.24 and 12,359.75 is: 18,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,420.10 : 71,134.24 = 12,359.75 : x
  2. Step 2: Convert to fraction form
    47,420.10/71,134.24 = 12,359.75/x
  3. Step 3: Cross multiply
    47,420.10x = 71,134.24 × 12,359.75
  4. Step 4: Simplify right side
    47,420.10x = 879,201,453.74
  5. Step 5: Solve for x
    x = 879,201,453.74/47,420.10
  6. Step 6: Final answer
    x = 18,540.69

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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.