Home / 47,212.22-70,785.52-20,902.61

Finding the Fourth Proportional to 47,212.22, 70,785.52 and 20,902.61

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Solution

The fourth proportional to 47,212.22, 70,785.52 and 20,902.61 is: 31,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,212.22 : 70,785.52 = 20,902.61 : x
  2. Step 2: Convert to fraction form
    47,212.22/70,785.52 = 20,902.61/x
  3. Step 3: Cross multiply
    47,212.22x = 70,785.52 × 20,902.61
  4. Step 4: Simplify right side
    47,212.22x = 1,479,601,712.02
  5. Step 5: Solve for x
    x = 1,479,601,712.02/47,212.22
  6. Step 6: Final answer
    x = 31,339.38

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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.