Home / 47,201.30-70,800.34-13,920.02

Finding the Fourth Proportional to 47,201.30, 70,800.34 and 13,920.02

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Solution

The fourth proportional to 47,201.30, 70,800.34 and 13,920.02 is: 20,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,201.30 : 70,800.34 = 13,920.02 : x
  2. Step 2: Convert to fraction form
    47,201.30/70,800.34 = 13,920.02/x
  3. Step 3: Cross multiply
    47,201.30x = 70,800.34 × 13,920.02
  4. Step 4: Simplify right side
    47,201.30x = 985,542,148.81
  5. Step 5: Solve for x
    x = 985,542,148.81/47,201.30
  6. Step 6: Final answer
    x = 20,879.56

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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.