Home / 47,847.06-71,765.01-12,789.45

Finding the Fourth Proportional to 47,847.06, 71,765.01 and 12,789.45

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Solution

The fourth proportional to 47,847.06, 71,765.01 and 12,789.45 is: 19,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847.06 : 71,765.01 = 12,789.45 : x
  2. Step 2: Convert to fraction form
    47,847.06/71,765.01 = 12,789.45/x
  3. Step 3: Cross multiply
    47,847.06x = 71,765.01 × 12,789.45
  4. Step 4: Simplify right side
    47,847.06x = 917,835,007.14
  5. Step 5: Solve for x
    x = 917,835,007.14/47,847.06
  6. Step 6: Final answer
    x = 19,182.68

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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.